Jonathan Breyne (Crelan-Euphony) tested positive for Clenbuterol on November 5 during the Tour of Taihu Lake. Now, the Belgian federal prosecutor will decide whether Breyne has infringed the doping regulations. His contract with the UCI Continental To Win-Josan Cycling Team for the 2014 season is in doubt.

The UCI statement on Breyne's test reads, "the decision to provisionally suspend this rider was made in response to a report from the WADA-accredited laboratory in Beijing indicating an adverse analytical finding of clenbuterol in a urine sample collected from him in a test during the Tour of Taihu Lake on 5 November 2013."

Win-Josan's team manager Willy Teirlinck said:

"A weeping and sobbing Jonathan Breyne told me that he does not know how the stuff came into his body. According Breyne it possibly would have been from his in his diet. His world had collapsed," said Teirlinck.

"He was going to ride for us from January 1, but if it is true that Breyne has tested positive for the use of clenbuterol is obviously not the case. Chances are that we should look for a replacement, but now we're already do not make hasty decisions because he can apply," said Teirlinck.

Breyne took the victory on stage 8 of the Tour of Taihi Lake on November 9. He finished in eight place overall.