In March, he tested positive for a drug called probenecid, and in May, the United States Anti-Doping Agency said Roberts' B sample also tested positive for the masking agent.

An arbitrator ruled that Gil Roberts unknowingly had probenecid in his system after kissing his longtime girlfriend, who was taking the medicine Moxylong to deal with a sinus infection.

Gil Roberts, who won gold in the 4x400m relay at the 2016 Olympic Games in Rio with the United States, receives a second suspension for doping.

Similarly, tennis player Richard Gasquet escaped a lengthy doping ban in 2009 when the International Tennis Federation's tribunal panel ruled that he inadvertently took cocaine by kissing a woman ...

The U.S. Anti Doping Agency has handed gold medalist Gil Roberts, who helped the U.S. 4x400 meter relay team win gold in the 2016 Rio Olympics, an eight-year suspension after he tested positive ...

Olympic relay champion Gil Roberts accepts a 16-month suspension after testing positive for two banned substances in May.

Getty Image Gil Roberts says he’s a lover, not a drug-taker. The U.S. Olympian failed a drug test and was banned from competition, but he claimed it was due to kissing someone who was taking ...

Gil Roberts, who won gold in the 4x400m relay at the 2016 Olympic Games in Rio with the United States, receives a second suspension for doping.