Steven Butler (34-4-1, 28 KOs) delivered a first-round knockout of Steve Rolls (22-4, 12 KOs) in Thursday’s main event at Casino de Montréal in Montreal, Canada.

The round started slowly, with the fighters initially feeling each other out. But suddenly Butler caught Rolls with a right hand, sending him to the ropes and leaving him out on his feet. Butler threw a few left hooks as Rolls was draped on the ropes, seemingly landing none of them cleanly.

Butler, 28, is now riding a two-fight win streak since being knocked out in the second round by WBO middleweight champion Janibek Alimkhanuly last May.

Rolls, 39, has now lost three of his last four.