Born in Angol, Herrera joined Universidad de Chile youth squad and was promoted to the first/adult team in 1999. Three years later, he became the first-choice keeper after being back-up for Sergio Vargas, who left The Lions after 10 years playing there. In 2004, Herrera won his first professional title after defeating Cobreloa as visitors in the Torneo Apertura final, where he scored the winning goal during the shootout, giving the club their twelfth League title. In 2006, he moved to Brazilian giants Corinthians. Following an unsuccessful spell at Brazil — where only played nine official games — he returned to Chile and signed for Everton from Vina del Mar in 2007. There, he helped the team to win the 2008 Torneo Apertura. However, in June 2008, Herrera left Everton to sign for Audax Italiano. In 2011, Herrera returned to Universidad de Chile. That year he had a brilliant season, being a major figure in the club’s first treble in its history after winning both league tournaments and the Copa Sudamericana, under the guidance of coach Jorge Sampaoli. Noteworthy, Herrera was even chosen as the goalkeeper of the season by Conmebol. In 2012, he helped Universidad de Chile to win the Torneo Apertura, which meant the club’s first ever league tri-championship, as well as the last reached during the Sampaoli era. On 20 May 2013, he featured in Universidad de Chile's 2–1 victory over Universidad Católica in the 2012–13 Copa Chile Final, the club's fourth cup in the contest. On 18 March 2014, Herrera scored his first official goal in a 1–0 Copa Libertadores group stage win over Peru’s Real Garcilaso, through a penalty kick. The same year he helped the club win the Torneo Apertura. His first League goal came on 22 November during a University Derby against Católica in a 2–2 draw. On 2 December, Herrera won his twelfth professional title after defeating in the Copa Chile Final to rivals Colo-Colo in the shootout, where he saved a penalty and scored the winning goal. On 13 February 2016, he scored his third official goal in a 2–1 defeat to Palestino, after scoring on a successful penalty.
International career
Herrera has been representing the Chilean national team since he was a youth player, participating in its U-20 and U-23 levels, this last as one of the 23 players nominated to the 2000 Summer Olympics in Sydney. His first call-up to the adult team was in 2002 in a game against Mexico, but however his last was in 2005. Years later, during the best moment of his career between 2011 and 2012 playing for Universidad de Chile, Herrera curiously didn't receive nominations from Claudio Borghi, the incumbent coach. The press usually alluded to an internal dispute between them, but with Borghi's departure in December 2012, the situation changed in Herrera's favor. After almost 7 years absence, Herrera was reconsidered by Jorge Sampaoli, who finally took the helm. He received his first call up from Sampaoli for the friendly matches against Haiti and Senegal in January 2013, where he stated that Herrera would play against Haiti, rotating the goal-keeping duties with Christopher Toselli. Nevertheless, he played both games which were 2–1 and 3–0 wins respectively. On 5 March 2014, Herrera earned his eighth cap against Germany in Stuttgart after replacing first-choice Claudio Bravo due to injury. However, he gave a fine performance during the game played at Mercedes-Benz Arena which Chile lost 1–0 on a Mario Götze goal. Having been part of the entire qualification campaign since Sampaoli‘s taking, Herrera was named in Chile's list of 23 for the FIFA World Cup in Brazil. On 5 June, he played in a 2–0 friendly win over Northern Ireland, prior to the World Cup. He was part of the 2015 Copa América champion team as back-up keeper to Claudio Bravo as well as in the 2016 Centenario edition. In 2017, he was nominated to the Confederations Cup and played two matches against Cameroon and Australia. That cup, Chile was runner-up after being defeated 1–0 by Germany in the final.
