In May, Rogers was the runner-up to Tejay van Garderen in the Tour of California. In July Rogers rode the Tour de France in support of Alberto Contador and finished in 16th place. In October he won the Japan Cup one-day race. In December it was announced that he had tested positive for clenbuterol at the latter race. He was suspended from cycling pending further investigation. On 23 April 2014 the UCI announced he would be cleared of any wrongdoing, no further action would be taken and that Rogers would be free to race again. The UCI accepted that there was a significant probability that the clenbuterol came from contaminated meat consumed while Rogers was competing in China, where the drug is often consumed by animals in slaughterhouses to exhibit better performance in farm sporting events.