Halle Berry's Ex and Fiancé fight at her house...

According to TMZ Gabriel Aubry, Halle's ex showed up at her doorstep with Nahla for a custodial hand-off. We're told Gabriel was inside the house when Olivier Martinez (current champion) walked up to him and said, "We have to move on." 

According to witnesses, Gabriel then pushed Olivier and threw a punch at his face, but Olivier blocked it and the punch struck him in the shoulder instead. We're told Gabriel then pushed Olivier to the ground, and Olivier cold-cocked him in the face, and a struggle ensued, ending with Olivier pinning Gabriel to the ground.

In the struggle, Gabriel suffered a broken rib, contusions on his face, and possibly a more serious head injury. Olivier may have broken his hand and suffered neck injuries as well. There are conflicting accounts as to whether Gabriel was rendered unconscious in the fight.