Earnhardt Jr to miss 2 races after 2 concussions - Article Photos 4/5

Dale Earnhardt Jr, center, talks about missing the next two races with his second concussion in the past six weeks as team owner Rick Hendrick, left, and crew chief Steve Letarte, right, look on during a news conference prior to practice for Saturday's NASCAR Bank of America 500 NASCAR Sprint Cup series auto race in Concord, N.C., Thursday, Oct. 11, 2012. (AP Photo/Terry Renna)