Chamberlain Stuns O'Leary in 10th | Boxing News

Boxing News Today | 2 Min News | The Daily News Now! · Aug 1, 2026 · 1m

Mark Chamberlain stunned the boxing world with a gritty, tenth-round knockout of hometown favorite Pierce O’Leary at the 3Arena, proving he’s no fluke and reigniting his title contention. After dropping O’Leary twice early and surviving a brutal seventh-round body shot that sent him crashing down, Chamberlain showed relentless resilience—using his jab and sharp left hand to control the fight before delivering the perfect finishing blow. Despite a deafening crowd favoring O’Leary, Chamberlain stayed composed, turning adversity into triumph in one of the most electrifying wins of his career…