Guess who thinks Brad Keselowski will be hard to beat?

   While most of Dale Earnhardt Jr.'s media availability on Friday at Martinsville Speedway was taken up by questions concerning his recent two-week absence from racing due to a pair of concussions, he did get a few non-medical questions.

   One was regarding Sprint Cup Series points leader Brad Keselowski, who kicked started his career running up front and winning races for JR Motorsports' Nationwide Series team. Earnhardt is co-owner of the team.

   Earnhardt was asked how he thought Keselowski would hold up in his current situation considering some people claim he might crack under the pressure.

   Here is Earnhardt's response: "I don’t think he’s going to crack. I think he’s going to be hard to beat. I think he will be a tough competitor all the way through. Brad has been waiting on this opportunity all his life so I don’t expect him to crack under the pressure. I think he will be tough.”