Dale Earnhardt Jr. is already scheduled to miss the next two Sprint Cup races as he recovers from a concussion. But the NASCAR star appears to be making progress and feeling better.
Earnhardt tweeted Friday that he can see "light at the end of the tunnel."
Today is the 1st day in many that I sensed improvement. Seen small gains during my physical therapy as well. Light at the end of the tunnel.
— Dale Earnhardt Jr. (@DaleJr) July 22, 2016