“I have informed NASCAR that I have requested that the ‘B’ sample be tested, following the steps according to NASCAR’s 2012 rule book regarding this situation. I fully respect NASCAR’s drug usage policy and the reasons they have it.

I am hoping this can get resolved as quickly as possible so that I can get back to driving the No. 22 Penske Racing Dodge. I am sorry that this has caused such a distraction for my Penske Racing team, our sponsors and fans.

Obviously I would never do anything to jeopardize my opportunity here at Penske Racing or to my fellow drivers. I am very conscious about my training and health and would never knowingly take a prohibited drug.”