Stephen Espinoza, most recently a partner at entertainment law firm Ziffren Brittenham, has been tapped as EVP and General Manager of Showtime Sports and Event Programming, the network announced today. He will be responsible for the day-to-day activities of the group and its pay-per-view unit; managing relationships with distributors, talent and suppliers; and the acquisition and licensing of programming. The move is the final one in a game of musical chairs that began when longtime HBO Sports chief Ross Greenburg left after 33 years at the premium channel. He was replaced last month by Showtime’s sports head, Ken Hershman, leaving the vacancy at Showtime that Espinoza has now filled. (Greenburg landed last week at a producer at NBC Sports Group.) While at Ziffren Brittenham, Espinoza repped numerous A-list film and TV clients, He also handled boxers Mike Tyson and Oscar De La Hoya and was lead counsel for De La Hoya’s Golden Boy Promotions, which makes him a perfect fit for Showtime’s boxing-heavy sports programming that also includes Strikeforce mixed martial arts and Inside The NFL. He also repped Gina Carano, the MMA standout that is now starring in Steven Soderbergh’s fight drama Haywire.