Gervonta Davis knocked out Frank Martin in the eighth round and retained his WBA lightweight title in Las Vegas.
Davis propped his compatriot on the ropes before connecting with a left uppercut and left hook to send Martin to the canvas.
Davis, nicknamed the Tank, stood atop the ropes and performed a backflip into the ring in celebration as he extended his record to 30-0, including 28 knockouts.
It is Martin’s first loss in 19 professional fights.
Davis made his first in-ring appearance since handing the first defeat of Ryan Garcia’s career in April 2023.
Garcia was in the fight with Martin and spoke to Davis afterwards, including showing him a message on his T-shirt asking for a rematch.