Gabe kapler, Bosox perhaps? Ruptured his Achilles tendon running around the bases at the Rogers Centre (September 2005)...
"In September 2005, Gabe Kapler ruptured his left Achilles tendon while running the bases on what turned out to be a home run by teammate Tony Graffanino. This ended Kapler's season. Kapler was usually the go-to guy in the outfield in case of an injury. Kapler, who hit lefties very well, usually would play instead of Trot Nixon in right field when a lefty was slotted in as the opposing pitcher."
Maybe that rings a bell?
TSN had a Top 10 video feature on gutsy performances -- Martinez's heroics are featured at #4:
Honourable mentions for the Cats include: Tony Champion's contortionism laying out to catch a ball from Mike Kerrigan for a TD in the 1989 Grey Cup while suffering from a broken rib...amazing! Joe Zuger's guts in playing most of the 1965 Grey Cup with a badly broken nose in leading the Cats to victory.
Oski Wee Wee,