During the UFC 199 broadcast, the UFC made official the return of Brock Lesnar. Although no opponent has been named, Lesnar will return at UFC 200.

It is also being reported that Lesnar’s opponent will be named tomorrow on ESPN’s Sportscenter.

About Brock Lesnar

Brock Edward Lesnar is an American professional wrestler and former amateur wrestler, professional American football player, and mixed martial artist[4] who is currently signed to WWE.[5] Lesnar is a four-time WWE (World Heavyweight) Champion, a former UFC Heavyweight Champion, and an NCAA Division I Heavyweight Wrestling Champion, the only person to have won a WWE championship, UFC championship, and NCAA championship in a career. He is also a one-time IWGP Heavyweight Champion, making him a five-time world champion in professional wrestling.

source: wikipedia.com