BOXER YUSAF MACK BEATS DOWN TWITTER TROLL IN BARBER SHOP... After Gay Attacks | TMZ Sports

Openly gay boxer Yusaf Mack unleashed a barber shop beatdown -- attacking a man he claims has been harassing him online over his sexual orientation. SUBSCRIBE -- About TMZ Sports: Some of the best stories in sports have been off the field and we’re reporting on athletes from NFL, NBA, UFC, WWE, MLB and more! Subscribe to TMZ Sports on YouTube for the latest news, exclusive interviews, clips from TMZ Sports on FS1 and videos of your favorite athletes and celebs. Need Mo