Michael Waltrip revealed Friday morning that his driver Brian Vickers will be out of the No. 55 Toyota this weekend at Auto Club Speedway after experiencing "a reoccurrence of blood clots" and said he did not have a timetable for a return.
Brett Moffitt, 22, will steer the car this weekend – his first time ever turning at lap at the 2-mile speedway – while Vickers begins blood-thinning medication which prevents him from racing.
"Thankfully because I recognized the signs and symptoms the doctors caught this early and I'm going to be OK,'' Vickers said in a team statement.
"I'm going to follow doctor's orders and do everything I need to do to get well.''
Vickers missed the first two races of the year while recovering from heart surgery in December and NASCAR kept him Chase for the NASCAR Sprint Cup-eligible.
Waltrip said he has not spoken with NASCAR yet to see how this setback affects his eligibility for NASCAR's 10-race, season-ending playoff. It's the fourth time Vickers has had to take time off for medical issues since 2010.