It might be the greatest collection of heavyweight champions in one building in boxing history.

Bob Velin writes that on Saturday night in Hollywood, Fla., 20 former heavyweight champions will come together for “World Heavyweight Champions — Saturday Fight Night” at the Seminole Hard Rock Hotel & Casino.

Wladimir Klitschko, the current lineal heavyweight champion, and his brother and the current mayor of Kiev, Ukraine, Vitali Klitschko, will be among the greats and near greats on hand for the celebration.

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