Crew chief Darian Grubb, exiled for six weeks for an infraction at Indianapolis Motor Speedway, returns to the pit box this weekend just as the Chase for the NASCAR Sprint Cup gets underway. Grubb was fined $125,000, Hamlin was docked 75 driver points and the crew chief and car chief were also placed on probation for six months. In Grubb's absence, engineer Mike Wheeler was named interim crew chief. More...