It's official: Brock Lesnar is returning to the UFC next month at UFC 200. A commercial promoting the event aired during tonight's UFC 199 show, which featured Lesnar at the end of the commercial.

Lesnar is slotted in the co-main event spot, with no opponent yet named. The main event will be Daniel Cormier defending the light heavyweight championship against Jon Jones.

We've been told that Lesnar has been training for his return since after WrestleMania 32. We'll have more details as they emerge.

Follow Sean Ross Sapp on Twitter at @SeanRossSapp. Got a news tip or correction? Send it to us by clicking here.