View Post Revolving Door | SportsNewser Univision President Luis Silberwasser Joins Warner Bros. Discovery as Chairman and CEO of Sports By A.J. Katz on Jun. 9, 2022 - 11:07 AM WBD boss David Zaslav turns to an old colleague to run the new company's global sports portfolio. Silberwasser assumes a role similar to the one Jeff Zucker held at WarnerMedia.