Brock Lesnar went to hell and back to finally overcome The Undertaker in their years-long rivalry Sunday night. That said, the former WWE World Heavyweight Champion won't be walking away from their Hell in a Cell battle unscathed.

WWE announced Lesnar needed as many as nine staples to close a gash on his head that required medical attention during the match. Lesnar was opened up early in the half-hour battle, with blood pouring over his face before the ringside doctor stepped in to temporarily stop the bleeding.

WWE's Joey Styles and doctor Larry Heck provided pictures of Lesnar: