Arlenis Sierra showing promise in California debut

Arlenis Sierra (Astana Women's Team)has thrived in her first season at the WorldTour level, taking a stage win and second overall in the Setmana Ciclista Valenciana, and second in the Trofeo Alfredo Binda WorldTour race. This week, she is chasing the best young riders' classification at the Amgen Breakaway from Heart Disease Women's Race.