American mixed martial arts (MMA) fighter Kayla Harrison defeated Brazil's Amanda Nunes at UFC 334 in New York, the website infohub.kz reports.
The bout served as the co-main event of the evening. It was scheduled for five rounds but ended early.
In the fourth round, Harrison took a dominant position on top and took her opponent's back. The American locked in a choke, and Nunes tapped out to signal submission.
The 36-year-old American has now won five fights in a row and defended the UFC bantamweight (up to 61.2 kg) championship belt. She now has 20 wins and one loss in MMA. Before the event, Harrison ranked second in the promotion's women's pound-for-pound rankings, behind only Kyrgyzstan's Valentina Shevchenko.
The 38-year-old Nunes was fighting for the first time since June 2023. She came out of retirement for the bout with Harrison. The Brazilian now has 23 wins and six losses. Nunes previously held UFC belts in the bantamweight and featherweight divisions. The latter no longer exists.