Head of ZS Sports / MLBPA-Certified Agent
As the Head of ZS Sports, Jon represents players and coaches in contract negotiations, salary arbitrations, and free agency, as well as negotiates numerous endorsement and marketing contracts on their behalf. Jon has been a certified agent since 2007, and has negotiated numerous free-agent, arbitration and draft contracts over his 13+ years as a certified agent. His clients have included All-Stars, a Cy Young candidate, first round selections in the MLB Draft, a major league manager, as well as two major league players who were recognized among the 10 smartest athletes in professional sports. Jon is a partner at Zuckerman Spaeder, and previously was a partner at the law firm of Williams & Connolly LLP. Jon played college baseball and basketball at Haverford College, where he served as the captain of the baseball team in his senior season.
Jon also has represented players appearing before congressional committees; represented players under investigation by Major League Baseball; and advised amateur athletes and their families on NCAA eligibility issues. Jon additionally represents sports agencies, agents, and former players in a variety of litigation matters, including salary arbitration proceedings, fee disputes and civil litigation.
Jon regularly speaks on panels relating to baseball salary arbitration, as well as other issues regarding major league baseball. He has served as a judge and panelist at the Tulane Law School National Baseball Arbitration Competition, and he has been a speaker at sports law events organized by Harvard Law School, Georgetown University Law Center, Northwestern Law School, Fordham Law School, the Penn State Dickinson School of Law, and the University of Maryland Robert H. Smith School of Business. He also spoke as a panelist before the Knight Commission on Intercollegiate Athletics.
University of Michigan Law School, J.D., cum laude, 1999
Haverford College, B.A., 1993
PHONE: (202) 778-1880
CELL: (267) 254-9612