Boxer Yusaf Mack Beats Down Twitter Troll In Barber Shop … After Gay Attacks (VIDEO)

[[tmz:video id=”0_porgegh1″]] Openly gay boxer Yusaf Mack unleashed a barber shop beatdown — attacking a man he claims has been harassing him online over his sexual orientation. TMZ Sports confirmed paramedics were called to the L A Clippers shop in…