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Serrano vs Tellez Preview: Start Time, Undercard

Originally posted on KO on SI | By Donal Long | Last updated Jan 3, 2026 6:00 AM ET

Puerto Rican fighter Amanda Serrano (47-4-1, 31 KOs) will return to the 126-pound division on Saturday night as she looks to bounce back from her trilogy loss to Katie Taylor in July 2025.

Three of Serrano's four losses have now come from the Irish fighter, as they concluded their fierce rivalry in 2025. The third bout between the pair would see Taylor win via majority decision, as the pair had yet another close affair.

Their second bout was in November 2024, when Serrano and Taylor stole the show in the co-main event of Mike Tyson vs Jake Paul. However, it would be a unanimous decision loss for Serrano in a true classic.

Serrano, 37, went into the sequel meeting with Taylor off five consecutive wins, as she bounced back from her 2022 split-decision loss to the Irish woman in style. Although 30 rounds of action with Taylor produced fantastic entertainment for boxing fans, Serrano was not able to get the better of her rival.

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For their second and third meetings, 'The Real Deal' Serrano ascended to the super lightweight division to take on the champion. However, she will now return to her more natural division at featherweight.

Although Serrano has not defended a world title at featherweight since 2023, she still remains the WBO and WBA champion of the division. And with Tellez coming in overweight, she will no longer be challenging for Serrano's titles.

Challenging Serrano is Florida-born fighter Reina Tellez (13-0-1, 5 KOs). Since a draw in her 2021 professional debut, the 22-year-old has gone 13 fights with victory as she now challenges for her first world titles.

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Tellez goes into her bout with modern great Serrano off two 2025 victories. In June, Tellez had a one-sided decision victory over Maria Salinas, who had a 27-11-6 record, in Orlando.

Three months later, Tellez would defeat Mayela Perez (20-29-4) in another dominant display on points. Now, she aims to cause a major upset against the decorated champion Serrano.

The bout in Puerto Rico will be contested over 12 three-minute rounds.