"He taught me that no matter how tough things got, no matter how hard things got, you don't stop," Jones tells TMZ Sports.
"That's why he's called a Raging Bull. You don't stop for nothing."
As for why Jake belongs on the All-Time Top 10 list, Roy says the way he pushed Sugar Ray Robinson (widely considered to be the best boxer ever) to the brink 6 TIMES is one of the most incredible feats anyone has ever accomplished in the ring.
Jake died on Tuesday. He was 95.