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.

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Kirsten Frattini
Editor

Kirsten Frattini has been the Editor of Cyclingnews since December 2025, overseeing editorial operations and output across the brand and delivering quality, engaging content.

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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.