Denny Hamlin got his crew chief back for the start of the Chase for the Sprint Cup championship, and he is hopeful Darian Grubb spent his six weeks away building fast race cars. Grubb was suspended by NASCAR after Hamlin's third-place finish at Indianapolis when NASCAR found issues with several covers in the rear firewall of his driver compartment during post-race inspection. Joe Gibbs Racing initially said it would appeal the penalty, which included a $125,000 fine for Grubb, but decided to have him serve the six-race suspension and return in time for the opening round of the Chase on Sunday at Chicagoland Speedway. Hamlin is the ninth seed in the 16-driver field, and he's been vocal that JGR needs to build some ''beast race cars'' to get the organization on the same level with Hendrick Motorsports and Team Penske. More...