A great lightweight and welterweight, Blackburn fought both Joe Gans and Sam Langford before finding fame while training Joe Louis.
- John David Jackson
A two-weight world champion while fighting, Jackson went on to work wonders with Sergey Kovalev, though also momentarily trained Shane Mosley and Bernard Hopkins.
- Robert Garcia
Garcia won the IBF super-featherweight crown as a pro fighter, but his work in the corner of Marcos Maidana and his brother, Mikey, in particular mark him out.