America’s best middle distance runner gets four-year doping ban just days before Olympic Trials; she blames pork burrito

On its face, the defense might sound silly, but several top American athletes have mounted persuasive cases in recent years that their positive tests were caused by contaminated beef or prescription medications. That isn’t quite what Houlihan is arguing, though. “We concluded that the most likely explanation was a burrito purchased and consumed approximately 10 hours before that drug test from an authentic Mexican food truck that serves pig offal near my house in Beaverton, Oregon,” she wrote. “I notified the (Athletics Integrity Unit) that I believed this was the source.”