** FIL E** Defending world heavyweight champion Trevor Berbick flexes his muscles during weigh-in for his fight against Mike Tysone at the Las Vegas Hilton, Nev., in this Nov. 21, 1986 file photo. Berbick, who lost his heavyweight title to Mike Tyson and was the last boxer to fight Muhammad Ali, was found dead Saturday, Oct. 28, 2006, in a church courtyard in Kingston, Jamaica, police said. He was 52. (AP Photo/Doug Pizac)