Ryan Bailey received a backdated six-month doping ban that ended in July. The sprinter-turned-bobsledder tested positive for a banned stimulant on January 10 at a bobsled race.

According to NBC Sports, the 2012 Olympian said that the failed test was caused by "taking a high-risk dietary supplement that did contain a banned stimulant, but not the one for which he tested positive."

The length of the particular ban is usually two years, but it was reduced for Bailey in a July 25 hearing "based on his light degree of fault." He was provisionally suspended on January 29 and his ban ended on July 9. After the arbitration decision was signed on July 26, Bailey competed at the USA Push Championships where he tied for 19th out of 26 competitors.

Bailey started training for the U.S. bobsled team last summer when a series of injuries prevented him from sprinting to his fullest on the track. In 2015, he ran a wind-legal 9.93 and a wind-aided 9.89 in the 100m, but got eliminated in the first round of the 2016 Olympic Trials.

In the bobsled tryouts last August, Bailey scored 741 points in the combine, more points than any other competitor. He won the preseason push championships in September but suffered from a back injury and missed the U.S. bobsled national team selection races in November.

At the 2012 Olympic Games, Bailey finished fourth in the 100m final. As Nick Zaccardi pointed out, five of the six American and Jamaican athletes from that race have served bans at some point in their respective careers: Yohan Blake (2nd), Justin Gatlin (3rd), Bailey (4th), Asafa Powell (7th), and Tyson Gay (DQ).

Five of the six USA/Jamaica sprinters in the 2012 Olympic men's 100m final have served bans. https://t.co/Oe3GZ1b2p0

— Nick Zaccardi (@nzaccardi) August 3, 2017