Shaquille O'Neal may have hung up his NBA jersey years ago, but he's not done stepping into the ring-this time, a boxing ring. The Hall of Famer has accepted a challenge from music industry veteran and Will Smith's former bodyguard, Charlie Mack, after Mack suggested the two settle an old score with gloves on.

Basketball legend Shaquille O'Neal has officially entered the celebrity boxing arena, setting up a highly anticipated clash with Charlie Mack. The O'Neal-Mack bout stems from a 2011 autograph session in Dallas,

Shaquille O’Neal reignites decades-old feud, agreeing to face Philly icon Charlie Mack in celebrity boxing showdown.