As The Undertaker turns 51 this week and after 25 haunting years in professional wrestling, we have taken an in-depth look into the man behind the grave.

The Phenom has had an amazing career since signing a contract with WWF in 1990.

Here’s some facts that you may not have known about one of professional wrestling’s greats, The Undertaker.

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High School Basketballer

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While studying at Texas Wesleyan University, Calaway pursued a career in Basketball and was a member of the collegiate team in 1985.

He would later be lured into professional wrestling, having to leave basketball behind.