Mikaela Mayer makes her return to Top Rank Boxing Tuesday Night

After testing positive for, COVID19 earlier this summer, MikaelaMayer makes her return to Top Rank Boxing Tuesday night in the cofeature. Learn the backstory of the 2016 Olympian in this video. Next up on the Top Rank on ESPN Summer series Jamel Semper Fi Herring and Mikaela Mayer, both of whom are healthy following recent positive COVID19 test results that delayed their fights, are primed for their Bubble debuts. U. S. Marine veteran Herring will make his second world title defense against Puerto