Horner anticipating fireworks on final two climbs of stage four

Defending champion Chris Horner (RadioShack) rides alongside GC contender Andy Schleck (Leopard Trek).

Defending champion Chris Horner (RadioShack) rides alongside GC contender Andy Schleck (Leopard Trek). (Image credit: Rafael Gómez Alonso)

Chris Horner is expecting a round of attacks to be fired at his RadioShack team on Sierra Road, the decisive climb that will end stage four of the Amgen Tour of California on Wednesday. Horner and his teammate, three-time overall winner Levi Leipheimer will start the race with a 15-second advantage in the overall classification, ahead of other notable climbers.

Kirsten Frattini
Deputy Editor

Kirsten Frattini is the Deputy Editor of Cyclingnews, overseeing the global racing content plan.

Kirsten has a background in Kinesiology and Health Science. She has been involved in cycling from the community and grassroots level to professional cycling's biggest races, reporting on the WorldTour, Spring Classics, Tours de France, World Championships and Olympic Games.

She began her sports journalism career with Cyclingnews as a North American Correspondent in 2006. In 2018, Kirsten became Women's Editor – overseeing the content strategy, race coverage and growth of women's professional cycling – before becoming Deputy Editor in 2023.