Here's UFC heavyweight Alistair Overeem showing off his new surgically-repaired lip ... after his face was blasted open in a TKO loss to Jairzinho Rozenstruik.
Overeem's face was a bloody mess after the UFC on ESPN 7 event on Dec. 7th ... when Rozenstruik hit Alistair with a crushing right hook in the 5th round that ended the fight with only 4 seconds left.
Overeem was hospitalized after the fight and underwent a surgical procedure to stitch him up ... and ESPN's cameras captured the 39-year-old as he was healing up.