CHARLOTTE, N.C. (AP) - Dale Earnhardt Jr. visited a noted concussion specialist in Pittsburgh on Tuesday as part of the planned rehabilitation program to get NASCAR’s most popular driver back in a car.

Hendrick Motorsports confirmed that Earnhardt met with Dr. Micky Collins of the UPMC Sports Medicine Concussion Program. He was accompanied by neurosurgeon Dr. Jerry Petty, who would not clear Earnhardt to race because of two concussions suffered  over the past six weeks.

Earnhardt did not seek treatment for the first concussion, suffered in an Aug. 29 crash at a tire test at Kansas. He went to see Petty last week because of a lingering headache following a 25-car crash in the Oct. 7 race at Talladega.

Earnhardt missed Saturday night’s race at Charlotte, and will miss this weekend’s race at Kansas, too.

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