1937-05-07 Lou Ambers w pts 15 Tony Canzoneri, Madison Square Garden, Manhattan, NYC, New York, USA - WORLD
1937-05-07 Lou Ambers w pts 15 Tony Canzoneri, Madison Square Garden, Manhattan, NYC, New York, USA - WORLD. Referee: Arthur Donovan. Scorecards: 12-2, 13-2, 15-0. Another hard struggle for supremacy, in the third fight between the pair, saw Ambers (135) retain his title on all three scorecards despite not producing his best form. For Canzoneri (135), though, despite showing flashes of his former brilliance it was his last crack at the big time and he won 16 of 23 further contests before retiring just over two years later. Although the scorecards showed Ambers winning most of the rounds, his better boxing certainly catching the eye, it was never that simple and the decision was greeted by boos and whistling.
Writing in The Ring magazine (March 1938 edition) regarding the September 1937 IBU ratings, Nat Fleischer remarked that when going to Rome, Italy to attend an international boxing convention in April 1938 it was important to sort out why the IBU had recognised Canzoneri as champion even though he had been beaten by Ambers. On the face of it, any support given to Canzoneri by the IBU appeared daft, especially as he had remained out of the ring since that date and that the IBU had earlier named Ambers as the champion in their September 1936 ratings. However, following the meeting, any claim that Canzoneri may have had through the IBU was cast aside when that body agreed to refuse all individually-made world champions in an effort to stand by one universally acknowledged champion.