Bryce Mitchell faces undefeated replacement opponent at UFC Vegas 118

Bryce Mitchell will face undefeated prospect Santiago Luna at UFC Vegas 118 this Saturday at the Meta Apex in Las Vegas, following a late opponent change. Luna (8-0) steps in on nine days' notice as a replacement for Victor Henry, who withdrew for undisclosed reasons. Mitchell, now 18-3, most recently earned a unanimous decision victory over Said Nurmagomedov at UFC Abu Dhabi in July 2025, marking a successful UFC debut at 135 pounds after competing at featherweight earlier in his career. The 21-year-old Luna brings an unblemished record into the matchup, having won all eight of his professional bouts. Mitchell has shown inconsistency of late, alternating wins and losses across his past seven fights, making this short-notice bout against an undefeated opponent a notable test for the established veteran. Short-notice replacements at this level typically signal either opportunity for rising prospects or risk for fighters dealing with limited preparation time against new opponents.