IndyCar series driver J.R. Hildebrand lost his ride with Panther Racing.
The two parties parted ways on Thursday, with the team calling it a mutual agreement, after Hildebrand crashed in Turn 1 on the fourth lap of the Indianapolis 500 on Sunday and was the first car out of the race.
Ryan Briscoe, a seven-time IndyCar series race winner, was named to replace Hildebrand for this weekend's Chevrolet Indy Dual in Detroit.
"He's a championship-caliber driver who's proven he can win races on any type of track in the IndyCar Series," Panther Racing managing partner John Barnes said. "We have no doubt he can jump right into our program and put the No. 4 National Guard Chevy at the front of the field."
The crash was the latest of several mistakes in the past two years by Hildebrand, a 2009 Indy Lights series champion. The biggest came in the 2011 Indy 500 when Hildebrand crashed going into the final turn and finished second to Dan Wheldon.
"I want to thank Panther Racing for the opportunity to drive the No. 4 National Guard Chevrolet," Hildebrand said in a statement. "I'm very much looking forward to the next chapter in my IndyCar career."
Briscoe drove for Chip Ganassi Racing on Sunday at Indy and finished 12th. He spent most of the previous five years with Penske Racing.
"I'm unbelievably excited to be back in the IndyCar Series with Panther Racing and to have the opportunity to drive the National Guard Chevrolet this weekend," Briscoe said. "I've competed against this team for a long time and it will be great to have the opportunity to work with John Barnes and the Panther guys."