WASHINGTON, D.C. – It looks like Olivier Aubin-Mercier has hit the end of his fighting career, at least for now. After winning his second season under the PFL, Aubin-Mercier (21-5) told MMA Junkie that he’s retiring from MMA, but leaving the door for a potential return if he changes his mind down the line. Aubin-Mercier defeated Clay Collard (24-11) in a unanimous decision in the main event of 2023 PFL Championship this past Friday at The Anthem in Washington, D.C