In an upcoming autobiography, Oil Can Boyd has admitted that he frequently used cocaine during his MLB career.

Boyd appeared on WBZ NewsRadio to promote his book and said that he was under the influence of cocaine for "two-thirds" of the games in which he has pitched.

Boyd went on to say, ""Oh yeah, at every ballpark. There wasn't one ballpark that I probably didn't stay up all night, until 4 or 5 in the morning, and the same thing is still in your system. It's not like you have time to go do it while in the game, which I had done that."

Last year, former Boston Red Sox manager said that Boyd was too drunk to pitch in the 7th and final game of the 1986 World Series.

Boyd continued on saying, "Some of the best games I've ever, ever pitched in the major leagues, I stayed up all night; I'd say two-thirds of them. If I had went to bed, I would have won 150 ballgames in the time span that I played. I feel like my career was cut short for a lot of reasons, but I wasn't doing anything that hundreds of ballplayers weren't doing at the time, because that's how I learned it."

He also said that never in his career was he tested for drugs. "I never had a drug test as long as I played baseball," he said. "I was told that, yeah, if you don't stop doing this we're going to put you into rehab, and I told them (expletive) that (expletive). I'm going to do what I have to do. I have to win ballgames. We'll talk about that in the offseason, right now I have to win ballgames."

Boyd also believes that bigotry, not drug use, was to blame for his relatively short career.

"The reason I caught the deep end to it is because I'm black," he said. "The bottom line is the game carries a lot of bigotry, and that was an easy way for them to do it. If I wasn't outspoken and a so-called 'proud black man,' maybe I would have gotten the empathy and sympathy like other ballplayers got that I didn't get; like Darryl Strawberry, Dwight Gooden, Steve Howe. I can name 50 people that got third and fourth chances all because they weren't outspoken black individuals."

Boyd has attempted to make a comeback in the past years. He played for the Can-Am League's Broxton Rox in 2005 and announced in 2009 that he was trying to make a Major League comeback at the age of 49.

Boyd's autobiography, "They Call Me Oil Can: My Life in Baseball" is scheduled to be released in June.