Jewel
The singer was supposed to compete alongside her husband Ty Murray, but she fractured both her tibias and was replaced by Holly Madison during season 8.
Gilles Marini
The very sexy French actor suffered not one but two injuries while Dancing With the Stars: He was sidelined by a groin inflammation during rehearsals before the season premiere and eventually underwent surgery to treat a separated shoulder.
Misty May-Treanor
In 2008, the Olympic beach volleyball champ went under the knife for repair of the Achilles tendon she tore while rehearsing the jive on the show.
Steve-O
The resident stuntman and Jackass star had to rest after being injured flipping onto his back and landing on his mic pack during his salsa routine rehearsal.
Cristián de la Fuente
The Chilean actor detached one of his tendons from its bone during his samba performance but waited until he was booted off the show to have it repaired through surgery.