Pierce O'Leary in action against Mark Chamberlain at 3Arena, Dublin. Picture date: Saturday August 1, 2026. (Photo by Damien Eagers/PA Images via Getty Images) | PA Images via Getty ImagesMark Chamberlain knocked out Pierce OLeary in the 10th round of an excellent action fight in front of a hot crowd in Dublin, Ireland.Chamberlain (18-1-1, 13 KO) was the B-side and underdog coming into this one, and also on hostile turf, but the English fighter seemed to feed off of the amped-up audience at 3Arena, and came out blazing, dropping OLeary (19-1, 11 KO) in the second and third rounds, leaving OLearys nose likely broken as it poured blood for the remainder of the fight.But the Dublin native OLeary didnt throw in the towel, either. He made his own rally and didnt just box well or hold Chamberlain off, he did damage, particularly to the body, and we saw Chamberlain dropped heavily on a body shot in the seventh round, before he came back and found the opening, landing a lovely shot in the 10th round to drop OLeary again, with the referee stepping in to stop the fight.It was really a hell of a fight, and if you missed it, find the replay as soon as you can.In the meantime, a look at some of the highlights from OLeary vs Chamberlain:CHAMBERLAIN DROPS PIERCE O'LEARY IN ROUND 2!!! #OLearyChamberlain | LIVE NOW on DAZN pic.twitter.com/a0sV47EiIz DAZN Boxing (@DAZNBoxing) August 1, 2026PIERCE O'LEARY GOES DOWN AGAIN!! #OLearyChamberlain | LIVE NOW on DAZN pic.twitter.com/YsjS5SfD7G DAZN Boxing (@DAZNBoxing) August 1, 2026WOW HUGE BODYSHOT!! Mark Chamberlain goes down in round 7#OLearyChamberlain | LIVE NOW on DAZN pic.twitter.com/1MpUAldR4W DAZN Boxing (@DAZNBoxing) August 1, 2026MARK CHAMBERLAIN KNOCKS OUT PIERCE O'LEARY #OLearyChamberlain pic.twitter.com/NeyhqYMYbw DAZN Boxing (@DAZNBoxing) August 1, 2026