Former Strikeforce champion and one-time UFC title contender Jake Shields has officially joined the welterweight roster of the World Series of Fighting.

Shields (29-7-1) signed a multi-fight deal with the promotion after being released by the UFC. He is expected to make his debut with WSOF in July.

“I have so much to prove, and I will become the World Series of Fighting welterweight champion,” Shields said. “I’m really looking forward to fighting at my new home with World Series of Fighting. I think that when you look at the World Series of Fighting welterweight roster, there is no denying that they’re housing many of the world’s best, and I’m proud to be a part of that group.”

The WSOF welterweight roster includes the likes of champion Rousimar Palhares, Jon Fitch, Josh Burkman, former champion Steve Carl and Gerald Harris.

Shields holds career wins over notables Tyron Woodley, Carlos Condit, Dan Henderson, Paul Daley and others during his 15-year career.

“Jake has been a top fighter in professional mixed martial arts for years now, ” World Series of Fighting President Ray Sefo said. “You know you’ve got one of the best in the world when you sign someone who has won multiple championship belts and has had 15-fight win streaks over some of the world class fighters he’s beaten.

“This kid is an extremely tough, proven warrior capable of beating anyone who stands in his way. I’m extremely proud we were able to sign him and I will continue bringing fighters of this caliber to World Series of Fighting.”