Chris Froome defends Ruta del Sol entry while attempting to prove innocence in adverse drug-test finding

Four-time Tour de France winner Chris Froome has defended his decision to race in the Ruta del Sol while he attempts to prove his innocence over an adverse drug-test finding.

Froome, 32, returned an adverse analytical finding for asthma drug salbutamol at La Vuelta - a race he won in an historic Tour-Vuelta double - last year.