Guam brawler Alex Castro laid it all on the line in his second pro bare knuckle fight before succumbing to a fifth knockdown ...

Check out these photos from the bareknuckle fights at BKFC on DAZN 3, which took place at Hard Rock Hotel and Casino in Hollywood, Fla. (Photos courtesy of BKFC) ...

BKFC on DAZN 3 takes place from Hollywood ... Edgard Plazaola defeats Alex Castro via KO in round 4 (1:25) Sabah Homasi defeats Eduardo Peralta via KO in round 2 (1:02) Tyler Randall defeats ...