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Fiesta De San Fermin Running Of The Bulls - Day 4

PAMPLONA, SPAIN - JULY 09: A Valdefresno fighting bull's horn pushes a reveller at Calle Estafeta during the fourth day of the San Fermin Running Of The Bulls festival, on July 9, 2013 in Pamplona, Spain. The annual Fiesta de San Fermin, made famous by the 1926 novel of US writer Ernest Hemmingway 'The Sun Also Rises', involves the running of the bulls through the historic heart of Pamplona, this year for nine days from July 6-14. (Photo by Pablo Blazquez Dominguez/Getty Images)

San Fermin: Spain's annual Running of the Bulls festival

Brave runners risk their lives as they face off with raging bulls in the San Fermin festival in Pamplona.