NASCAR Cup Series driver Kyle Busch will not compete in Sunday's Coca-Cola 600 at Charlotte Motor Speedway after being hospitalized as the result of a severe illness.
In addition to the Cup race, Busch, 41, was scheduled to compete in the NASCAR Craftsman Truck Series race at the speedway in Concord, North Carolina.
"Kyle has experienced a severe illness resulting in hospitalization," the Busch family said in a statement posted on social media. "He is currently undergoing treatment and will not compete in any of his scheduled activities this weekend at Charlotte Motor Speedway. We ask for understanding and privacy as our family navigates this situation."
This will be the first time in more than a decade that Busch has missed a Cup Series race. In 2015, he missed the first 11 races of the season while recovering from a compound leg fracture and broken foot following a crash during the Xfinity Series season opener at Daytona International Speedway.
Richard Childress Racing announced that Austin Hill, who drives the No. 21 for RCR in the O'Reilly Auto Parts Series, will sub for Busch in the No. 8 Chevrolet for the Cup race.
"Kyle Busch's health is our upmost priority and he and his family have the full resources of RCR behind them," RCR said in a statement. "Kyle is an integral part of our organization and we wish him a safe and speedy recovery. His No. 8 Chevrolet will be ready and waiting for him. We're thankful to Austin Hill for stepping in to drive the No. 8 Chevrolet this weekend. Please keep Kyle and the Busch family in your prayers, and help us respect the family's privacy at this time."
Busch ranks 24th in the Cup Series standings, with two top-10 finishes in 12 races this season. The Las Vegas native won championships in 2015 and 2019. Busch is in his fourth season at Richard Childress Racing after winning titles with Joe Gibbs Racing.
His last win came in 2023, his first with RCR.
One of NASCAR's most polarizing personalities, Busch has won 234 races across the sport's three national series, more than any driver in history.
He has won 63 Cup Series races, including the 2018 Coca-Cola 600.
But Busch has struggled to find consistency since leaving for RCR.
His lack of success led to a spat with former Joe Gibbs Racing teammate Denny Hamlin, who appeared to criticize Busch on the "Actions Detrimental" podcast. Hamlin said, "If you're expecting Kyle Busch to just go back to Victory Lane on a regular basis, you are kidding yourselves."
Although Hamlin later said he meant no harm by the comments and was just making an observation, Busch took exception and said he could make Hamlin's life "hell" on the racetrack.
While several laps down at last month's race at Kansas, Busch raced Hamlin hard instead of allowing the race leader to pass. That decision held up Hamlin during a crucial stage of the race.
Tyler Reddick wound up winning the race after Hamlin faded late, finishing fourth despite a race-leading 131 laps.
After winning the Trucks race at Dover last week and showing an uptick in speed, Busch seemed to make a veiled jab at Hamlin, saying, "I guess I just remembered how to drive."
The two appear to have made amends since, with Hamlin saying Busch is on the "Mount Rushmore" of racing.
After earning his 69th career Truck series race win at Dover, Busch was asked how many races he wants to win in his career before he stops racing.
"You take whatever you can get, man," Busch said. "You never know when the last one is going to be, so cherish them all -- trust me."
The Associated Press contributed to this report.
