LeDoux's opponents included Ken Norton, Ron Lyle, Gerrie Coetzee, Leon Spinks, Greg Page, Frank Bruno, George Foreman, Mike Weaver, and Larry Holmes.

A pushing match ensued and in the process, Cosell's headset along with his toupee was dislodged by an errant LeDoux shove in front of live ABC cameras.

On April 22, 1976, LeDoux lost to fellow Minnesotan Duane Bobick before a crowd of 13,789 at the Metropolitan Sports Center in Bloomington, MN, which is still a Minnesota record.

[1] The high point of LeDoux's career were arguably draws scored against Leon Spinks and an aging Ken Norton.

LeDoux took part in a five round exhibition match with Muhammad Ali and was a sparring partner to both Mike Tyson and Lennox Lewis.

[citation needed] Instead, the study suggests that some may have a variant of dementia pugilistica, known as chronic traumatic encephalopathy or boxer's syndrome.