Tyrann Mathieu -- 'Honey Badger' Checks Into Rehab

Tyrann Mathieu -- the ex-LSU football star who was kicked off the team last week for violating the school's substance abuse policy -- has checked himself into rehab.

Mathieu's father, Tyrone, told WVUE-TV in New Orleans that the Honey Badger has been at the Right Step recovery center in Houston since Monday.

Mathieu -- a 2011 Heisman Trophy finalist -- is being mentored daily by former NBA star John Lucas, whose career was derailed by drugs in the 1980s. Lucas has gone on to help dozens of athletes battle addiction.