from bodybuilding.com article and interview with dorian yates
"In '94, a few weeks out from his third Mr. Olympia win, Dorian, in performing the exercise credited with building much of his unmatched back thickness, reverse grip bent over rows, discovered he had torn his left bicep. Still able to train over the remaining weeks before the show, the damage being more psychological than physical at that point, Dorian prevailed over Shawn Ray at that year's Olympia to take yet another crown"...
any mention of that exercise is always followed by comments about it causing torn biceps.