Despite going the distance in their first match-up in 2015, Deontay Wilder made quick work of Bermane Stiverne in their rematch on Saturday night (Nov. 4), knocking him out in the first round.

In front of fans at Brooklyn’s Barclays Center, Wilder (39-0, 38 KO’s) retained his WBC title in his sixth defense, while also remaining undefeated.

The 32-year-old champ first knocked down Stiverne with a devastating one-two combination that caught him on the nose. After getting up quickly with a standing 8 count, Wilder stood with his hands down, daring the challenger to engage him. When he didn’t, he threw a big left and an overhand right that sent a stunned Stiverne back to the canvas. When he got up, with 10 seconds left in the round, Wilder immediately attacked, landing four blows that sent Stiverne to the floor. This time, he didn’t get up.

“You have to give props to Stiverne for getting in the ring,” Wilder said after the fight. “It takes a lot of courage and it takes a lot of pride to step in the ring with someone like me. We do what we have to do in the ring and at least he stepped up. He was a clean fighter.”

Showtime reporter Jim Grey asked Wilder if a fight with unified heavyweight champion Anthony Joshua was next. “I’ve been waiting on that fight for a long time now,” he replied. “I declare war upon you. Do you accept my challenge? I’ve been waiting for a long time. I know I’m the champion. I know I’m the best. Are you up for the test?”

“A king doesn’t chase the peasants. A king takes kings. I want Joshua,” Wilder continued. “If he doesn’t give me the fight we have other plans. The world wants Joshua, the world wants Wilder, I want Joshua. Joshua come and see me baby. No more dodging, no more excuses. Make the date, don’t wait.”

Stiverne’s record fell to 25-3-1. Watch the knockout in the video above.