Stewart-Haas Racing’s Kurt Busch is without crew chief Tony Gibson after the Food City 500 in Support of Steve Byrnes resumed from a nearly four-hour red flag for rain.
Gibson began suffering from a kidney stone during the red flag. He has been replaced on the No. 41’s pit box by lead engineer John Klausmeyer. He will be sharing crew chief duties with Stewart-Haas racing competition director Greg Zipadelli.
Gibson tweeted that he already had been released from a Bristol hospital and was watching the race from his motorcoach at the track.
This incident comes 33 days after Gibson passed another kidney stone in the hospital.
No Lithotripsy today! Passed the kidney stone at the hospital before procedure.Thanks for all the thoughts and prayers! Definitely worked ✌️
— Tony Gibson (@TonyOldman41) March 17, 2015