UFC is in serious talks with former heavyweight champion Brock Lesnar to have him return for a fight at UFC 200 on July 9 in Las Vegas, according to a number of top MMA sources.

The current WWE Superstar has signed a deal with his former employer for a one-off fight at the big event in July, although an opponent for Lesnar hasn’t been finalized.

Lesnar last completed for UFC in December 2011 in which he lost to Alistair Overeem at UFC 141. Lesnar’s career was cut short due to his diverticulitis, which ultimately lead to his return to WWE in 2012.

Lesnar said on the “Stone Cold” Steve Austin’s podcast back in October 2015 that he was very serious about coming back to the UFC.

“It wasn’t a bluff,” Lesnar told Austin. “I felt robbed by diverticulitis. I felt robbed by being sick. I was feeling good and it took me a couple years to start feeling good. I’m at home, I’m working out, my life is great, everything’s in tune, my contract’s coming to an end with WWE, hey it’s been a great time but something’s missing.

“I was up front and totally honest with the company and told them I’m really thinking of pursuing getting back in the Octagon.”

WWE issued the following statement confirming the news:

“Brock Lesnar remains under contract to WWE, however, he has been granted a one-off opportunity to compete at UFC 200. Following this milestone event on July 9, Brock will return to WWE for SummerSlam on Sunday, August 21, live on WWE Network.”