Canelo stops Saunders to unify super middleweight titles in front of 73,126 Texas crowd Attendance was the largest US crowd in history to watch an indoor boxing event. By AFP Sunday 9 May 2021, 9:12 AM May 9th 2021, 9:12 AM 18,656 Views 25 Comments Canelo, left, added Saunders' WBO title to his collection. Image: AP/PA Images Image: AP/PA Images SAUL “CANELO” ALVAREZ stopped Billy Joe Saunders in eight rounds on Saturday to unify three super middleweight titles in front of the largest US crowd in history to watch an indoor boxing event. Four-weight world champion Alvarez retained his WBC and WBA titles and seized Saunders’ WBO belt when the previously undefeated Briton retired on his stool after taking a beating in the eighth round.