Greg Page was an American professional boxer who competed from 1979 to 2001, and held the WBA heavyweight title from 1984 to 1985. He outpointed former Heavyweight World Champion James Smith and knocked Gerrie Coetzee out. He was also a regular sparring partner for Mike Tyson, famously knocking down the then-undefeated world champion during a 1990 session. World heavyweight champion (WBA) from December 1, 1984 to April 29, 1985. Wiki link