- Terry Blount, ESPN Staff Writer
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FONTANA, Calif. -- David Gilliland replaced Kyle Busch in the No. 18 Toyota during a caution on Lap 63 of the Pepsi 500 Sunday at Auto Club Speedway, having started the race in the No. 71 Chevrolet before taking it to the garage after 13 laps.
"I'm going to go lay down little bit see if I can get some fluids in me in the infield care center," said Busch, who was suffering with strep throat. "I appreciate these guys standing by me. I'm sorry I had to get out.
"But I'm not feeling well. I was coughing real bad out there. I've been fighting this for several days."
Gilliland was running 20th on Lap 85 of the 250-lap race.
Gilliland's Chevrolet team is one of the entries known as start-and-park cars. The driver takes the car to the garage early in the race because they don't have the parts or crew to race the entire event.
Denny Hamlin, Busch's teammate at Joe Gibbs Racing, replaced Busch Saturday on Lap 37 of the Nationwide race. Hamlin crashed late in the race and finished 31st.
Busch is the season points leader in the Nationwide Series. The driver who starts a NASCAR race earns the points for that event if he is replaced during the race.
Terry Blount covers motorsports for ESPN.com.