Dale Earnhardt Jr., one of 12 drivers who begin this weekend to compete in the Chase for the Sprint Cup, will be without one of his regular pit crew members, at least for several weeks.
Hendrick Motorsports officials confirmed Friday morning that rear tire changer Joe Slingerland suffered a serious injury in a non-work related injury accident earlier this week and will miss much if not all of the Chase.
David Mayo will fill-in for Slingerland during his absence.
Slingerland told the Web site PitTalks.com he suffered a broken wrist and concussion in a accident at the U.S. National White Water Center on Tuesday night.
Read the story at PitTalks.com here.