According to a press release from Walldinger Racing, A.J. Allmendinger tested positive for a stimulant. Allmendinger has no idea why the first test was positive, and says he would never take a banned substance."
Walldinger Racing Vice President Tara Ragan said, " A.J. is collecting his medicines and supplements for testing to determine whether an over the counter product caused his positive test. AJ and all of us at Walldinger Racing respect NASCAR's testing program, and he has requested that his "B" sample be tested as part of the process of getting to the bottom of this.
The release went on to thank their fans, team and sponsors for their support.
Allmendinger has received support from Grand Am sports car team owner Michael Shank.
"First and foremost, A.J. Allmendinger is a friend of mine, actually more like a brother," said Shank. "I stand 100% behind him in this challenging time. He has stood behind me and been loyal to my team for seven years. Even when we let him down, he never considered bailing on me and my team. I will certainly never leave him behind when tough times come for him."
Allmendinger drove Shank's No. 60 Daytona Prototype to victory in the Rolex 24 at Daytona earlier this year.