Brian Norman Jr. upsets Giovani Santillan with bloody, brutal 10th-round KO

SAN DIEGO – Fighting in his opponent’s hometown as the underdog, Brian Norman was not going to be denied.

Norman stopped Giovani Santillan, rated No. 4 by The Ring at 147 pounds, in Round 10 on Saturday before a shocked and partisan crowd at Pechanga Arena. Norman improved to 26-0, 20 knockouts and won the interim WBO welterweight title.

Both Santillan and Norman fought on the inside from the opening bell, exchanging hooks and crosses. Norman spent most of the first two rounds with his back against the ropes...