British heavyweight David Haye (27-2, 25 KOs) returned to the ring with a first round knockout of Mark de Mori (30-2-2, 26 KOs) on Saturday night at the O2 Arena in London.
In his first fight since he knocked out fellow Londoner Dereck Chisora in five rounds in 2012, Haye easily halted the overmatched Australian, who needed extensive attention from medics after being sent to the canvas with an explosive right hook followed by a series of hard shots.
Haye was landing left-hand jabs and…