Jake Shields has signed a multifight contract with World Series of Fighting.
Shields' manager, Lex McMahon, and WSOF executive vice president Ali Abdelaziz confirmed the deal to ESPN.com on Thursday.
Bleacher Report earlier reported the news.
"Jake is happy to call WSOF home and is looking forward to a long relationship," McMahon said.
Shields (29-7-1) was released by the UFC earlier this month, following a 4-3 run that began in October 2010. Prior to that, he held the Strikeforce middleweight title.
According to Abdelaziz, Shields will most likely make his WSOF debut in July. He will compete in the welterweight division, which includes current champion Rousimar Palhares, Jon Fitch and Josh Burkman, among others.
Shields, 35, fought Georges St-Pierre for the UFC welterweight title in April 2011. He lost via unanimous decision. Back-to-back wins over Tyron Woodley and Demian Maia boosted him back into the title picture last year. He was released following a one-sided decision loss to Hector Lombard at UFC 171.