Toronto's Paul Tracy may have to miss the final Champ Car race after breaking his right shoulder blade in a drunken joyride in a golf cart near Las Vegas last weekend.

Tracy, who currently lies fifth in the championship standings, said the incident occurred last Saturday night.

"Sorry to say it was self-inflicted. I was at a party and had had a little too much to drink, and we thought it was a good idea to go out on a golf cart and try and jump sand dunes with it," said Tracy, who is due to race next Saturday in Mexico City. (MORE)