Keirin world champion Fabian Puerta suspended after adverse analytical finding

Colombia's Fabian Hernando Puerta Zapata celebrates after winning the men's Keirin final during the UCI Track Cycling World Championships

Colombia's Fabian Hernando Puerta Zapata celebrates after winning the men's Keirin final during the UCI Track Cycling World Championships (Image credit: Michael Aisner)

The Union Cycliste Internationale (UCI) has provisionally suspended keirin world champion Fabian Puerta of Colombia after traces of the anabolic steroid boldenone were discovered in an out-of-competition anti-doping control carried on June 11.