John Yannis scores first-round KO in UFC debut win

John Yannis knocked out Jamie Siraj in the first round at UFC Winnipeg. This victory marks Yannis's first UFC win, improving his record to 10-4 after losing his promotional debut. The fight was Siraj's first bout in the UFC, resulting in a debut loss for the fighter who came in with a 14-4 record. Details about the specific finish are limited in the report.