NASCAR Champion Tony Stewart was airlifted to a local hospital in Iowa after breaking his leg in a Sprint Car accident at Southern Iowa Speedway on Monday night.

Stewart was racing for the lead with Tasker Phillips and Tony Shilling, when they were collected by a spinning Josh Higday.

Stewart was awake and alert when he was airlifted to the hospital and underwent surgery on his right leg.

His NASCAR Sprint Cup Series team announced that no replacement driver has been picked for this weekend’s race at Watkins Glen International.

This is the third wreck in as many weeks for Stewart who races in the Sprint Car series during the week. He has defended his running Sprint Cars most recently at Pocono after he flipped three times last week at an event.

Following the death of Stewart’s good friend Jason Leffler, he defended his running Sprint Car races during the week.

"I get to race with the best stock-car drivers in the world every weekend here for three days a week. In the evenings, I get to go do something that's the polar opposite end of the spectrum and it's a challenge because it's the opposite end of the spectrum for us.

Stewart is currently 11th in the wildcard standings, with one win. Leading into this weekend race Stewart had run 521 consecutive races since his first start in 1998.

On Tuesday, Stewart Haas Racing announced that Stewart would need a second operation following his crash on Monday night.

Also, Max Papis who tested for SHR at Road Atlanta in July will take over Stewart's car for Watkins Glen.

the team did not announce who would take over at Michigan next weekend and set no timetable for Stewart's return.

Stewart posted a message on his Facebook page to his fans:

"I told someone to go get my phone or else I was going to get up and get it myself," Stewart said Tuesday in a Facebook post. "Finally got reconnected to the world and just want to say thank you for all the prayers and well wishes. My team will remain strong and I will be back."