Jeffrey L. Kessler is a partner at the international law firm Winston & Strawn, where he also serves as co-executive chairman and co-chair of the firm's antitrust/competition and sports law practices. Until May 2012, he was the global litigation chair at the international law firm Dewey & LeBoeuf, where he was also the co-chair of the sports litigation practice group and served on the firm's executive and leadership committees. His major clients include the National Football League Players Association, the National Basketball Players Association, William Morris Endeavor, Activision Blizzard, Avanci, the Major League Baseball Players Association, the players on the United States Women’s National Soccer Team, NTN Corporation, and Panasonic Corporation (formerly, Matsushita Electric).