HOUSTON -- Not long after a bye week trip to Mexico, Houston Texans left tackle Duane Brown received an unpleasant surprise.
It was a letter from the NFL informing him of a violation of the league's policy on performance-enhancing drugs, having tested positive for clenbuterol.
Brown faced a 10-game suspension, but he hadn't done anything nefarious.
According to sources, the NFL Players Association proved to the NFL that the culprit was Mexican beef. Consequently, on Tuesday, the drug program's independent administrator sent a letter warning players that consumption of too much meat in Mexico and China could cause a positive test for the anabolic substance clenbuterol.