Penske Racing has withdrawn Brad Keselowski as the driver of the #22 car in the Nationwide Series for this weekend's race at Iowa Speedway, following his major accident in testing
at Road Atlanta on Wednesday afternoon.
Parker Kligerman will take the seat during practice on Friday, before Sam Hornish Jr. gets a late call-up to run the car in Saturday's qualifying session and for the race itself.
Keselowski hit the wall at speeds of around 100mph after an apparent brake failure on the road test course, at a point without a SAFER barrier in place. Although Keslowski exited the wreckage of the #2 Blue Deuce Cup car under his own steam, he was shaken and had some injuries to his legs and ankles and was flown to Atlanta Medica Center for several hours of precautionary evaluation and examinations.
Keselowski was alert and wake throughout and was quickly onto Twitter to reassure fans, even posting pictures of his injuries which included a very badly swollen left ankle
. However, the X-rays confirmed that no serious damage had been done and he wasn't required to stay in hospital overnight.
Keselowski also posted, "Looks like I'll be ok to race this weekend", but the injuries he received have evidently proved rather more painful and debilitating than initially felt in the immediate adrenalin-filled aftermath of the crash itself.
The driver spent much of Thursday having "a full day of doctors and hospitals" and tweeted that he had "just left Dr Petty's office in Charlotte and I am cleared to race!", referring to NASCAR neurosurgeon Jerry Petty.
However, Penske said that it would continue to monitor Keselowski's condition over the coming days and make its own decision about whether or not he was fit enough to participate in the Pocono Cup race.
In withdrawing Keselowski from the Nationwide Series race in the meantime as a precautionary measure, Penske want to ensure that Keselowski - who is 21st in the Cup championship and can ill-afford to miss a race at this stage of the season if he wants to make the Chase via a wildcard - is fully recovered in time for Sunday's senior series race at Pocono. In order to stand a chance of getting through to the Chase, Keselowski would need to be in the top 20 for his single Cup race victory at Kansas Speedway in June would be taken into account for one of the two wildcard positions.
By contrast with his Cup championship campaign, Keselowski is not eligible to score driver points in Nationwide, despite being the reigning series champion and competing in all but one of the 21 races so far this season and taking two wins including last weekend's final race at Lucas Oil Raceway in Indianapolis.
20-year-old Parker Kligerman, who is a Penske Racing development driver, will get he opportunity to experience the Nationwide car on Friday in Keselowski's place, but will then be needed at Pocono for the Camping World Truck Series race on Saturday.
That opens the door for former Cup and IndyCar driver Sam Hornish Jr. to get behind the wheel for the qualifying and race duties.