A drug test of British cyclist and four-time Tour de France winner Chris Froome recently found that he had excessive levels of the asthma drug albuterol (salbutamol) in his system after winning a cycling event in Spain.

Froome won his fourth Tour de France title this year and followed it with a victory at the Spanish Vuelta. But Team Sky said Wednesday that Froome, who has not been suspended, had a concentration of asthma drug salbutamol two times higher than the World Anti-Doping Agency’s permitted levels.

“Analysis indicated the presence of salbutamol at a concentration of 2,000 nanograms per milliliter (ng/ml), compared with the WADA (World Anti-Doping Agency) threshold of 1,000 ng/ml,” Team Sky said.

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