Nascar

3222f9a7444ac20c4f0f6a706700460a.jpg

NASCAR Sprint Cup driver Jimmie Johnson speaks to the media during a press conference prior to auto racing practice at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

2a31ebd94446c20c4f0f6a7067009813.jpg

Sprint Cup driver Austin Dillon prepares to go on the track for the first round of practice for a NASCAR autop race at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

81debed9444cc20c4f0f6a706700ba87.jpg

Sprint Cup driver Brad Keselowski waits in his car for the first round of practice to start for a NASCAR auto race at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

7f2d6ff4444bc20c4f0f6a706700ae91.jpg

Sprint Cup driver Joey Logano prepares to go on the track during the first round of practice for a NASCAR auto race at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

a0f1c5764491c40c4f0f6a706700339f.jpg

NASCAR Sprint Cup driver Dale Earnhardt Jr. speaks to the media during a press conference prior to practice at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

641dc87b4493c40c4f0f6a7067007d0d.jpg

NASCAR Sprint Cup driver Kyle Busch, left, talks with Chad Knaus, prior to practice at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)

1780a39b4445c20c4f0f6a7067006679.jpg

Sprint Cup driver Denny Hamlin (11) leads Danica Patrick and Clint Bowyer through turn four during the first round of practice for a NASCAR auto race at Martinsville Speedway in Martinsville, Va., Friday March 28, 2014. (AP Photo/Mike McCarn)