Thanks, I got it from the most hilarious Roberto Duran biography ever: Here is an excerpt.
Taken off the streets by boxing's angel, St. Bob Arem, Durán’s next to last fight was against WBC world junior middleweight champion Thomas Hearns, who simply pointed to the floor, and when Durán looked down Hearns cold-****ed him with a right cross. The bout ended with Durán in a coma which lasted for 10 years. After waking up Durán claimed to have taken a dive. He was awarded the title on a technicality, but soon outgrew the weight limit.
http://uncyclopedia.wikia.com/wiki/Roberto_Duran
It's describes his whole career with hilarious nonsense, well worth a read.