Spencer-Mayer set for three-belt junior middleweight bout

Mary Spencer will defend her WBA junior middleweight title against Mikaela Mayer on Thursday at the Casino de Montreal, with the vacant WBC and WBO 154 pound belts also at stake after Cecilia Braekhus relinquished her titles. The 10-round main event begins in the United States on the Top Rank Classics channel at 8 p.m. Eastern Time; Canadian viewers can stream the card on Punching Grace.

Both fighters made weight at the official weigh-in. Spencer weighed 152.8 pounds and Mayer 151 pounds. The bout pits Spencer, a 40-year-old Canadian and 2012 Olympian who turned professional late, against Mayer, a 35-year-old former two-division champion and 2016 Olympian aiming to become a three-division world titlist.

Spencer won the WBA belt after claiming an interim title in September 2024 and was upgraded when the primary titleholder vacated. She defended the belt in April with a unanimous decision over Ogleidis Suarez and enters Thursday having won three straight since back-to-back losses to Femke Hermans in 2022 and 2023. Mayer is the reigning WBO welterweight champion after defeating Sandy Ryan by majority decision in September 2024 and winning a clearer unanimous decision in their March...