Two more Spanish cyclists have failed drugs tests, world cycling's governing body has announced.

Ezequiel Mosquera and Xacobeo-Galicia team-mate David Garcia tested positive for the blood booster hydroxyethyl starch in urine samples during the Vuelta a Espana.

The news comes after it was confirmed traces of clenbuterol had been found in samples taken from Tour de France champion Alberto Contador.

Mosquera and Garcia can request testing of their B samples to confirm the result.