2015 · It showed the 35-year-old athlete in a threesome with two other men, and at first Mack claimed he'd been drugged into doing the gay scene, with Philly.com floating the idea that maybe he'd been. Yusaf Mack is out and proud now: Aside from Philly boxer, Yusaf Mack, revealing that he was bisexual, he also admitted to having interest in transgender women. So much so, that he was later linked to transgender model, Sidney Starr, who revealed they became intimate after they were caught lip-locking in a Chicago nightclub.