Tupac 'Wanted Me to Smoke Weed' with Him

When Mike Tyson looks back on his friendship with Tupac Shakur, he thinks about the rapper's big heart, explosive anger - and the one regret he has about their relationship.

"He always wanted me to smoke weed with him, and I never did it, and I wish I did," Tyson said in a recent phone interview.

Tyson said he declined because he was a closet smoker and didn't want it to get out that he smoked the drug. Now, when he looks back on the lost opportunity, he says: "That's my biggest regret."

Tyson's friendship with Shakur is the subject of a new documentary, "One Night in Vegas: Tyson & Tupac," which airs Tuesday on ESPN (8 p.m. EDT).

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