Third time's a charm for Serrano

"But now, for these girls, I'm an inspiration. Me and Katie are an inspiration for fighting and headlining a card at the Garden. Now, to be able to headline — and have an all-girl card — is truly, truly amazing."

Taylor won the first fight by split decision before a sold-out crowd of 19,187 that was split between her Irish and Serrano's Puerto Rican fans. She won a unanimous decision in the rematch last year, getting the nod by one point on all three judges' cards, as the co-main event to Jake Paul's victory over Mike Tyson at the Dallas Cowboys' stadium.

The trilogy bout, for Taylor's undisputed super-lightweight titles, seems certain to be another slugfest. Yet, both insist the action on the card, which will stream on Netflix, starts well before the final fight.

"From start to finish it's going to be quality, after quality, after quality," Taylor said. "This isn't just a gimmick. This is going to simply be a great night for boxing, and I'm so proud of that."