Brock Lesnar makes stunning return to WWE, attacking Oba Femi

Brock Lesnar made his shocking return to WWE on "Monday Night Raw," exactly one month after he appeared to be retiring following his loss to Oba Femi.

Femi was about to host his weekly open challenge to any Raw competitor. As he got into the ring, Lesnar attacked him from behind and sent the crowd in Greensboro, North Carolina, into a frenzy.

Lesnar hit four F-5s on Femi, catching "The Ruler" completely off guard. Lesnar smiled as Femi writhed in pain from the multiple finishing moves.