We all know the Mike Tyson story and his roller coaster ride of a career but when you really look it, it's amazing how much of a difference Kevin Rooney made. With Rooney, Tyson record was 35-0 with 31 ko's and he was undisputed champion of the world. He had just destroyed Michael Spinks in 1 rd and was on top of the world and the Don King wanted full control of Mike and turned him against Rooney. With Rooney gone, the head and upper body movement left also...the angles left...the excellent jab left..the crushing body work and combination punching left. Mike became one dimensional. In his first fight without Rooney he was hurt badly by Frank Bruno, his second fight he destroyed a scared Carl Williams and his third fight he was Ko'd by Douglas. So we have with with Rooney 35-0 31 ko's and after Rooney he was 15-6 14 ko's and 2 nc...a prison stint for rape..in and out of jail, drug abuse etc. Had Tyson stayed with Rooney and stayed disciplined he possibly could have made it to Ali status. What a difference a trainer can make.