The depth chart for hitting bottom was deeper than former LSU football star Tyrann Mathieu realized.

"I thought my bottom was when I got kicked out of school, but I think when I got arrested in October, that was a different bottom," Mathieu said Wednesday at LSU's pro day.

Mathieu, a Heisman Trophy finalist in 2011 as a spectacular, game-changing defensive back and kick returner for the Tigers with the iconic nickname "Honey Badger," sat out the entire 2012 football season after LSU expelled him for repeated positive tests for marijuana in August. In October, after a few weeks at a drug rehabilitation center in Houston, Mathieu was arrested in his LSU campus apartment for marijuana possession.

"Then I decided to go to a rehab, but at this time the rehab was for Tyrann," Mathieu said, distinguishing himself from the "Honey Badger" moniker. "I just wasn't going to it for publicity or because my school told me to go. I actually went to get my problem corrected this time."

Mathieu now believes he has his marijuana habit under control.

"It's a process," he said. "I'm trying to embrace it. I'm trying to reach out for help as much as I can. That's why I got into a rehab program. That's why I get counseling. That's why I have a sponsor."

The New Orleans native, who will be 21 in May, shortly after the NFL draft, said he knows he has a long way to go and is not ready to advise youngsters just yet.