Briton Mark Chamberlain stunned Republic of Ireland's Pierce O'Leary as he dropped him twice on the way to securing a 10th round knockout victory, claiming the IBO light-welterweight belt. But just as momentum appeared to be swinging in the favour of O'Leary, Chamberlain found a breakthrough and managed to get the stoppage late on. "First of all respect to Pierce for giving me this opportunity," Chamberlain told DAZN after the fight. After a tight and cagey first round, Chamberlain stunned the home crowd of around 7,000 as he landed a flush left hand that sent O'Leary flying back onto the canvas. O'Leary continued to press on, with Chamberlain looking tired and the Irishman buoyed by the crowd.