Tony Stewart’s NASCAR season is now in jeopardy thanks to a broken leg that he suffered after wrecking his car during a Sprint Car Race at Southern Iowa Speedway at Oskaloosa.

This was the third time Stewart has crashed his Sprint Car, just last week he crashed during a race in Ontario.

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This was the third time Stewart has wrecked while racing a sprint car this year, including one a week ago in Ontario where his car flipped five times. After that crash, Stewart got testy with reporters asking him about racing outside of NASCAR’s Sprint Cup.

“You mortals need to watch more sprint car videos. It was not a big deal,” Stewart said to reporters. “It is starting to get annoying this week [answering questions] about that.”

With five races left before the Sprint for the Cup on the NASCAR circuit, Stewart is eleventh in points and was in position to be one of the Wild Card drivers for the championship. However, it is unclear if he will be able to return this season.