Deontay Wilder knocks out Robert Helenius with one punch in the first round

Deontay Wilder is back.
After a hellacious trilogy of fights with Tyson Fury that saw Wilder suffer the first two losses of his professional career, "The Bronze Bomber" proved that he still has something left in the tank with an absolutely devastating first-round knockout against Robert Helenius at Barclays Center in Brooklyn, New York.