The 10 Greatest Unification Fights of All-Time | Top Rank'd

To celebrate the big unifications bouts coming up this weekend on ESPN+ watch this edition of #toprankd we look at the 10 greatest unification bouts of all time featuring #shakurstevenson Sugar Ray Leonard and more. #boxing Next up for Top Rank Boxing, Two heated rivalries will come to a head Saturday, Sept. 10 in a historic championship doubleheader at the O2 Arena in London. The previously announced main event will see two-time Olympic gold medalist Claressa Shields, the WBC/WBA/IBF/Ring Magazine middleweight champion, aim to once again become undisputed at 160 pounds by facing longtime rival and WBO titleholder Savannah Marshall. Shields and Marshall faced off as amateurs, with Marshall edging Shields by decision at the 2012 AIBA Women’s World Championships in Qinhuangdao, China. Shields went 77-1 as an amateur and is the only female boxer to win undisputed titles in two weight classes. In the co-feature, Mikaela Mayer will look to get one step closer to becoming the first undisputed champ in her division by putting her WBO/IBF/Ring Magazine junior lightweight titles on the line against WBC champion Alycia Baumgardner. A total of seven world titles and two Ring Magazine belts will be on the line. Promoted by Salita Promotions and Boxxer, in association with Top Rank, Shields-Marshall, Mayer-Baumgardner, and undercard bouts will stream live and exclusively in the U.S. on ESPN+ Try ESPN+ For Free: https://watch.espnplus.com/toprank/ Subscribe to our YouTube channel to get notified about the latest highlights, free full fights, and fight week content as it's posted. Follow Top Rank on Twitter:   / trboxing   Follow Top Rank on Instagram:   / toprank   Like Top Rank on Facebook:   / trboxing