Olivier Aubin-Mercier could be making the walk for the final time at the 2023 PFL Championships. Aubin-Mercier (20-5) will look to claim his second straight $1 million lightweight season win when he meets Clay Collard (24-10-1) on Nov.
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Olivier Aubin-Mercier contemplating retirement after 2023 PFL Championships – MMA Junkie