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Although acting would become his profession, Mickey Rourke's love for boxing never diminished and he ended up sparring - without any headgear, as was his wont - some of the sport's most devastating punchers.
"My favourite person to spar with was [Roberto] Durán," he said of the Panamanian four-weight world champion. "The only reason was that he's a little guy blown up so I was going to be OK.
"The funny thing about Roberto is that we would say, 'OK, we'll spar at 2:00 pm tomorrow.' It would be 2, 3, 4:00 pm and Roberto might show up then but my trainer just said, 'Roberto goes my Panama time', meaning, whenever he gets out of bed.
"But I loved sparring with Roberto because he would teach me. He would stop me, 'No, Mickey, no', and he would show me what I should be doing."
Although Mickey Rourke enjoyed what he could learn from the relatively smaller Durán, in James Toney he faced an altogether different sparring partner.
"In three years I never won one round with James Toney," he admitted of his sparring sessions with the former three-weight world champion.
"He would get in there and starting talking shyt to me and if you didn't say, 'fukk you, bring it on', he'd eat you up. So, there would be a lot of shyt-talk going on.
"But he was always in transition and set to throw something at an angle where you were open. I think, probably, James is definitely in the top three of all time in his weight class."
Despite spending three years at the mercy of James Toney, it is another sparring partner that Rourke looks back to and wonders whether he may have been better off outside the ring.
"The biggest mistake of my life was sparring with Tommy Hearns," said Rourke. "He dropped me in the second round with what I think was a left-hook.
"He was feinting and moving his shoulders and I'm just thinking, 'What the fukk is coming at me here?' His jab - I rate his jab and Larry Holmes' as the best of all time - was like a jackhammer.
"I went down on one knee and then went back to my trainer. 'Why did you tell me to take a knee?' He just looked at me. 'Son, I didn't say anything.'
"This was at about 3:00 pm in the afternoon but by about midnight when I was back home, I felt like I was going to throw up and I was trying to call a doctor but I couldn't push the buttons on the phone.
"What I had, and I'd never heard of it before, was a delayed concussion, from that punch."