The Sept. 18, 2021 boxing card in Las Vegas already has athletes from two different strength sports. Hafthor Björnsson and Eddie Hall, competing in the main event, are both World’s Strongest Man champions. Hall won in 2017 and Björnsson took that title the next year. Then, two CrossFit Games veterans, Josh Bridges and Jacob Heppner, will fight each other in the first advertised undercard bout. Now, one of the elite in women’s powerlifting will make her jump into the ring as well for this big event.