George Chuvalo grabs the wrist of Muhammad Ali at a meeting to promote their upcoming heavyweight title bout, April 10, 1972. Chuvalo fought Ali to the end of the 12-round rematch in Vancouver, British Columbia. After their first title fight, a 15-rounder in Toronto in March 1966, Ali said “He’s the toughest guy I ever fought.” (Patrick A. Burns/The New York Times) By ALEX TRAUB George Chuvalo, a Canadian heavyweight who earned the reverence of boxing fans and sports writers for the toughness…
