Turner worked with Heavyweight contender Michael Grant and most recently with rising prospect John Duddy.
[1] Don Turner has worked with or trained more than 20 world boxing champions and countless top ranked contenders.
He is credited as being the man who convinced Evander Holyfield that the cutman is "the biggest scam in boxing.
"[2] During the heavyweight championship bout, Holyfield suffered a cut above his left eye which kept reopening during the match, affecting his vision.
The lack of a cutman is thought to have been a determining factor that cost Holyfield the match.