Katie Taylor edged Amanda Serrano on points with a split-decision victory in an instant classic at Madison Square Garden in New York.
The Irishwoman retained her undisputed lightweight championship in a fight brimming with action, heart and excellence.
Two of the three judges saw it for Taylor in a fight that lived up to every prediction and every hope.
It was the first time two females had headlined the famous venue.
Taylor got the verdict on two cards, by 97-93 and 96-93 margins, with one judge scoring it 96-94 to Serrano.
More to follow.