Pierce O'Leary vs Mark Chamberlain
THE BIG BANG, Pierce O’Leary, will once again be the star turn at the 3Arena in his home city of Dublin on Saturday, August 1, when he goes up against Mark Chamberlain in a first defence of his IBO world super lightweight title, live on DAZN. The pair were originally set to deliver a potential th
- Pierce O'Leary
- Mark Chamberlain
Date: 2026-08-01
Location: 3Arena, Dublin, Ireland
Status: Upcoming