Originally published on ProWrestlingSheet.

WWE Superstar Brock Lesnar took nine staples to the head following his bloody Hell in a Cell match against The Undertaker ... and the photos look painful.

Lesnar battled the Dead Man Sunday night at, appropriately enough, The Staples Center in Los Angeles -- and it wasn't long before his head was busted open during the brawl.

Brock Lesnar was the victor, but his head took another beating after the match ... when he received nine freaking staples in his head to close the wound.

Unclear if Brock will appear on RAW tonight following his win -- but based on the pics, the 38 year-old took his head staples like only a true beast can.  So we're guessing it won't put him out of action.