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Jonathan Amoona

Partner

New York

+1 212-294-4745

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  • Overview
  • Experience
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“One of sports law’s rising litigators” and “brightest stars,” according to Forbes, Jonathan has served as counsel in some of the most significant sports legal matters in recent history and has successfully represented numerous athletes, players unions, sports agents, and agencies.

Jonathan has successfully represented the top sports agents and agencies in the world in high-stakes litigation and arbitration. His clients include Klutch Sports Group, MVP Sports Group, and WME Sports. Also a leading lawyer in the industry for transactional work, Jonathan has negotiated nearly $200 million in guaranteed compensation for sports agents across all major sports, including agents at WME Sports, Athletes First, Octagon, and CAA. Jonathan also regularly represents the National Football League Players Association and NFL players. In connection with these representations, Jonathan served as counsel in the Bounty, Ray Rice, Adrian Peterson, Tom Brady, and Ezekiel Elliott litigations and arbitrations. Jonathan has also served as counsel for the National Basketball Players Association and NBA Players, and he has represented scores of other professional athletes in adversarial proceedings. 

Key Matters

  • Ben Simmons v. Philadelphia 76ers. Jonathan represented NBA All-Star Ben Simmons in an action brought against his former team, the Philadelphia 76ers, for breach of the NBA collective bargaining agreement, among other things.

  • Excel Sports Management v. Eric Eways and Klutch Sports Group. Jonathan represented Klutch Sports Group in an action brought by Excel Sports Management seeking an injunction to prevent its former marketing employee from working at Klutch.

  • Guden v. Stanford University. Jonathan represented a group of Stanford University athletes in an action seeking to enjoin Stanford from terminating eight of its varsity sports teams. The action ultimately led to the reinstatement of the eliminated teams.

  • Searcy v. National Football League Players Association, et al. Jonathan represented the NFLPA in an action brought by a prospective NFL agent challenging the Union’s Regulations Governing Contract Advisors.

  • Major League Baseball Player and Player Agent Arbitrations. Jonathan has represented several high-profile baseball players and agents in arbitrations under the Major League Baseball Players Association’s Regulations Governing Player Agents.
  • Green Bay Packers v. Bennett. Jonathan represented NFL Tight End Martellus Bennett in a proceeding brought against him by his former Club, the Green Bay Packers, for alleged breach of the NFL CBA.

  • Elliott v. NFL. Jonathan represented Dallas Cowboys Running Back Ezekiel Elliott in arbitration and federal court proceedings challenging the six-game suspension imposed on him by the NFL for alleged violation of the League’s Personal Conduct Policy.

  • Brady v. NFL (“Deflategate”). Jonathan represented New England Patriots Quarterback Tom Brady in arbitration and court proceedings challenging his four-game suspension imposed by the NFL for his alleged role in the so-called “deflategate” scandal.
  • Hardy v. NFL. Jonathan represented Dallas Cowboys Defensive End Greg Hardy in his appeal of his ten-game suspension for alleged violation of the NFL’s Personal Conduct Policy.
  • Peterson v. NFL. Jonathan represented NFL Running Back Adrian Peterson in arbitration and court proceedings challenging his NFL suspension.
  • Rice v. NFL. Jonathan represented Ray Rice in his appeal of his indefinite suspension imposed by NFL Commissioner Roger Goodell.
  • NFLPA v. NFL (“Contempt”). Jonathan represented the NFLPA in a contempt proceeding brought against the NFL and Commissioner Roger Goodell for violating the District Court’s order in Peterson.
  • Rice v. Baltimore Ravens. Jonathan represented Ray Rice in a grievance proceeding against the Baltimore Ravens challenging Mr. Rice’s termination by the Club.
  • NFLPA v. NFL (“Personal Conduct Policy”). Jonathan represented the NFLPA in a grievance challenging the NFL’s new Personal Conduct Policy as a violation of the parties’ collective bargaining agreement.
  • Miller v. NFL. Jonathan represented NFL Linebacker Von Miller in a proceeding against the NFL and the Denver Broncos concerning the League and the Club’s attempt to recover a portion of Mr. Miller’s signing bonus.
  • New England Patriots v. Fanene. Jonathan represented NFL Defensive Lineman Jonathan Fanene in an action brought by the New England Patriots to recover Mr. Fanene’s signing bonus.
  • Vilma v. Goodell. Jonathan represented the National Football League Players Association and NFL players Scott Fujita, Anthony Hargrove, and Will Smith in connection with federal court proceedings in the Eastern District of Louisiana challenging NFL Commissioner Roger Goodell’s arbitration award affirming the players’ discipline for their alleged roles in a “pay-for-performance/bounty” program at the New Orleans Saints.
  • New Orleans Saints “Pay-for-Performance/Bounty” Program CBA Arbitrations. Jonathan represented the National Football League Players Association and NFL players Scott Fujita, Anthony Hargrove, and Will Smith in arbitrations under the NFL’s collective bargaining agreement challenging Commissioner Goodell’s imposition of discipline against the players for their alleged participation in a “pay-for-performance/bounty” program.
  • Anthony v. NBA. Jonathan represented Carmelo Anthony, Chauncey Billups, Caron Butler, Baron Davis, Kevin Durant, and nine other NBA players in an antitrust lawsuit against the NBA and NBA teams challenging the legality of the NBA’s lockout imposed on all NBA players.
  • Brady v. NFL. Jonathan represented Tom Brady, Drew Brees, Vincent Jackson, Ben Leber, Logan Mankins, Peyton Manning, Von Miller, Brian Robison, Osi Umenyiora, and Mike Vrabel in an antitrust lawsuit against the NFL and NFL teams challenging the legality of the NFL’s lockout imposed on all NFL players.
  • NBA v. NBA Players Association. Jonathan represented the NBPA, Derek Fisher, Keyon Dooling, James Jones, Matt Bonner, Maurice Evans, Roger Mason, Jr., Chris Paul, Theo Ratliff, Etan Thomas, Amar’e Stoudemire, Mike Dunleavy, James Fredette, and Charles Jenkins in a declaratory judgment action filed by the NBA.
  • NFL Players v. Upper Deck. Jonathan represented the NFLPA and NFLPI in a breach of contract action against Upper Deck.
  • Pryor v. NFL. Jonathan represented NFL Quarterback Terrelle Pryor in his appeal challenging the propriety of his five-game suspension issued by the NFL.
  • White v. NFL (Broadcast Revenues). Jonathan represented the White class and the NFLPA in a proceeding challenging the NFL’s negotiation of its national TV contracts.
  • White v. NFL (Collusion). Jonathan represented 246 NFL players in a proceeding against the NFL and its member clubs arising under the NFL’s collective bargaining agreement.
  • Baldwin v. IMG. Jonathan represented top sports agent in a declaratory judgment action filed against his former employer.
  • The Source Enterprises, Inc. v. Bowe Industries Inc. Jonathan represented the Source magazine in a Lanham Act/Trademark infringement case against Bowe Industries stemming from a violation of the Source’s trademarks in connection with the sale of unauthorized apparel.
Recent Experience
Triumphed for Relevent Sports Before Second Circuit, Reviving Antitrust Suit Against FIFA, USSF

  • Recognized by Chambers USA as an “Up and Coming Practitioner” in Sports Law (2024)
  • Recognized by The Legal 500 US as one of 13 “Leading Lawyers” in Sports (2024)
  • Recognized as a “Next Generation Partner” by The Legal 500 US in the area of Industry Focus: Sport (2020–2023)
  • Listed in The Best Lawyers in America® for Sports Law (2022–2025)
  • Selected to Lawdragon’s “500 Leading Global Entertainment, Sports & Media Lawyers” and  “500 Leading Global Antitrust & Competition Lawyers” (2025)
  • Selected as a member of Sports Business Journal’s “Forty Under 40” list, which honors the top young executives in the sports industry (2021)
  • Named one of the top four sports lawyers under 40 by Law360 (2018)
  • Named to Forbes’s “30 Under 30 Sports List,” which honors the 30 “brightest stars” in the sports industry under the age of 30. He was joined on the Forbes list by LeBron James, Rob Gronkowski, Maria Sharapova, and Kevin Durant, among others. (2014)
  • Selected by Forbes as one of three “30 Under 30: Corporate Climbers.” Forbes recognized Jonathan as “one of sports law’s rising litigators,” citing his work on the Ray Rice and Adrian Peterson matters. (December 2014)
  • Recognized by Super Lawyers as a “Rising Star” in the area of Entertainment & Sports. (2014–2020) 
  • Winston & Strawn’s Sports Law group has been recognized by U.S. News and World Reports - Best Lawyers “Law Firm of the Year” in Sport Law. (2012–2013)
  • Law360 has honored Winston & Strawn as “Practice Group of the Year” in the Sports category. (2017)  

Capabilities

Litigation/Trials
Antitrust/Competition
Sports
Cryptocurrencies, Digital Assets & Blockchain Technology

Key Matters

  • Ben Simmons v. Philadelphia 76ers. Jonathan represented NBA All-Star Ben Simmons in an action brought against his former team, the Philadelphia 76ers, for breach of the NBA collective bargaining agreement, among other things.

  • Excel Sports Management v. Eric Eways and Klutch Sports Group. Jonathan represented Klutch Sports Group in an action brought by Excel Sports Management seeking an injunction to prevent its former marketing employee from working at Klutch.

  • Guden v. Stanford University. Jonathan represented a group of Stanford University athletes in an action seeking to enjoin Stanford from terminating eight of its varsity sports teams. The action ultimately led to the reinstatement of the eliminated teams.

  • Searcy v. National Football League Players Association, et al. Jonathan represented the NFLPA in an action brought by a prospective NFL agent challenging the Union’s Regulations Governing Contract Advisors.

  • Major League Baseball Player and Player Agent Arbitrations. Jonathan has represented several high-profile baseball players and agents in arbitrations under the Major League Baseball Players Association’s Regulations Governing Player Agents.
  • Green Bay Packers v. Bennett. Jonathan represented NFL Tight End Martellus Bennett in a proceeding brought against him by his former Club, the Green Bay Packers, for alleged breach of the NFL CBA.

  • Elliott v. NFL. Jonathan represented Dallas Cowboys Running Back Ezekiel Elliott in arbitration and federal court proceedings challenging the six-game suspension imposed on him by the NFL for alleged violation of the League’s Personal Conduct Policy.

  • Brady v. NFL (“Deflategate”). Jonathan represented New England Patriots Quarterback Tom Brady in arbitration and court proceedings challenging his four-game suspension imposed by the NFL for his alleged role in the so-called “deflategate” scandal.
  • Hardy v. NFL. Jonathan represented Dallas Cowboys Defensive End Greg Hardy in his appeal of his ten-game suspension for alleged violation of the NFL’s Personal Conduct Policy.
  • Peterson v. NFL. Jonathan represented NFL Running Back Adrian Peterson in arbitration and court proceedings challenging his NFL suspension.
  • Rice v. NFL. Jonathan represented Ray Rice in his appeal of his indefinite suspension imposed by NFL Commissioner Roger Goodell.
  • NFLPA v. NFL (“Contempt”). Jonathan represented the NFLPA in a contempt proceeding brought against the NFL and Commissioner Roger Goodell for violating the District Court’s order in Peterson.
  • Rice v. Baltimore Ravens. Jonathan represented Ray Rice in a grievance proceeding against the Baltimore Ravens challenging Mr. Rice’s termination by the Club.
  • NFLPA v. NFL (“Personal Conduct Policy”). Jonathan represented the NFLPA in a grievance challenging the NFL’s new Personal Conduct Policy as a violation of the parties’ collective bargaining agreement.
  • Miller v. NFL. Jonathan represented NFL Linebacker Von Miller in a proceeding against the NFL and the Denver Broncos concerning the League and the Club’s attempt to recover a portion of Mr. Miller’s signing bonus.
  • New England Patriots v. Fanene. Jonathan represented NFL Defensive Lineman Jonathan Fanene in an action brought by the New England Patriots to recover Mr. Fanene’s signing bonus.
  • Vilma v. Goodell. Jonathan represented the National Football League Players Association and NFL players Scott Fujita, Anthony Hargrove, and Will Smith in connection with federal court proceedings in the Eastern District of Louisiana challenging NFL Commissioner Roger Goodell’s arbitration award affirming the players’ discipline for their alleged roles in a “pay-for-performance/bounty” program at the New Orleans Saints.
  • New Orleans Saints “Pay-for-Performance/Bounty” Program CBA Arbitrations. Jonathan represented the National Football League Players Association and NFL players Scott Fujita, Anthony Hargrove, and Will Smith in arbitrations under the NFL’s collective bargaining agreement challenging Commissioner Goodell’s imposition of discipline against the players for their alleged participation in a “pay-for-performance/bounty” program.
  • Anthony v. NBA. Jonathan represented Carmelo Anthony, Chauncey Billups, Caron Butler, Baron Davis, Kevin Durant, and nine other NBA players in an antitrust lawsuit against the NBA and NBA teams challenging the legality of the NBA’s lockout imposed on all NBA players.
  • Brady v. NFL. Jonathan represented Tom Brady, Drew Brees, Vincent Jackson, Ben Leber, Logan Mankins, Peyton Manning, Von Miller, Brian Robison, Osi Umenyiora, and Mike Vrabel in an antitrust lawsuit against the NFL and NFL teams challenging the legality of the NFL’s lockout imposed on all NFL players.
  • NBA v. NBA Players Association. Jonathan represented the NBPA, Derek Fisher, Keyon Dooling, James Jones, Matt Bonner, Maurice Evans, Roger Mason, Jr., Chris Paul, Theo Ratliff, Etan Thomas, Amar’e Stoudemire, Mike Dunleavy, James Fredette, and Charles Jenkins in a declaratory judgment action filed by the NBA.
  • NFL Players v. Upper Deck. Jonathan represented the NFLPA and NFLPI in a breach of contract action against Upper Deck.
  • Pryor v. NFL. Jonathan represented NFL Quarterback Terrelle Pryor in his appeal challenging the propriety of his five-game suspension issued by the NFL.
  • White v. NFL (Broadcast Revenues). Jonathan represented the White class and the NFLPA in a proceeding challenging the NFL’s negotiation of its national TV contracts.
  • White v. NFL (Collusion). Jonathan represented 246 NFL players in a proceeding against the NFL and its member clubs arising under the NFL’s collective bargaining agreement.
  • Baldwin v. IMG. Jonathan represented top sports agent in a declaratory judgment action filed against his former employer.
  • The Source Enterprises, Inc. v. Bowe Industries Inc. Jonathan represented the Source magazine in a Lanham Act/Trademark infringement case against Bowe Industries stemming from a violation of the Source’s trademarks in connection with the sale of unauthorized apparel.
Recent Experience
Triumphed for Relevent Sports Before Second Circuit, Reviving Antitrust Suit Against FIFA, USSF

Credentials

Education

Jonathan earned a B.S., magna cum laude, in Communication from Cornell University in 2006, where he received the Excellence in Communication Award and was a member of the Academic All-Ivy League Team. He received a J.D., cum laude, from Georgetown University Law Center in 2009, where he was the Executive Editor of the Georgetown Journal of Legal Ethics.

    Admissions
    • New York

    Related Insights & News

    Publications

    • “After Further Review: How the Eighth Circuit’s Misinterpretation of the Norris-LaGuardia Act Fumbled the District Court’s Ruling in Brady v. NFL,” 1 Berkeley J. Ent. & Sports L., 2012
    • “Top Pick: Why A Licensed Attorney Acting As A Sports Agent Is A ‘Can’t Miss’ Prospect,” 21 GEO. J. Legal Ethics 599

    Speaking Engagements

    • “How New Media and Evolving Audience Demands Affect Sports Law,” 11thAnnual Sports & Entertainment Law Symposium, Georgetown University Law Center, Panelist, February 9, 2018
    • Sports Law, Adelphi University, Guest Lecturer, September 2015
    • “Solving Football’s Off-Field Crisis,” 4th Annual Sports Law Colloquium, NYU Law School, Panelist, April 3, 2015
    Recognitions
    Winston Attorneys Featured on the 2025 Lawdragon Leading Global Entertainment, Sports & Media Lawyers List

    March 7, 2025

    Recognitions

    Winston Attorneys Featured on the 2025 Lawdragon 500 Leading Global Antitrust & Competition Lawyers List

    January 30, 2025

    Recognitions

    Winston Attorneys Recognized in The Best Lawyers in America® 2025

    August 15, 2024

    Recognitions
    Winston & Strawn Recognized in The Legal 500 U.S. 2024

    June 12, 2024

    Recognitions
    Winston & Strawn Recognized in Chambers USA 2024

    June 6, 2024

    Recognitions
    Winston Attorneys Recognized in The Best Lawyers in America® 2024

    August 17, 2023

    Recognitions
    Winston Team Led by Jeffrey Kessler and Linda Coberly Featured in Litigator of the Week Column

    March 10, 2023

    Client Success
    Winston Scores Precedent-Setting Second Circuit Win for Relevent Sports, Reviving its Antitrust Challenge Against FIFA and U.S. Soccer Federation

    March 7, 2023

    Recognitions
    Winston & Strawn Named a 2022 Sports & Betting Practice Group of the Year by Law360

    January 13, 2023

    Recognitions
    Winston & Strawn Antitrust/Competition Practice Recognized in 2023 GCR 100

    December 19, 2022

    Recognitions
    Winston & Strawn Attorneys Recognized in The Best Lawyers in America© 2023

    August 18, 2022

    Recognitions
    Winston & Strawn Selected for Sports Business Journal’s List of Power Players: Outside Counsel

    October 28, 2021

    View All Insights & News

    Capabilities

    Litigation/Trials
    Antitrust/Competition
    Sports
    Cryptocurrencies, Digital Assets & Blockchain Technology
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