coach of Colo-Colo. In only one season, he won the 2015 Torneo Apertura title with and also led them into the 2015 Copa Chile. On July 22, 2016, he signed a one-year contract with eight-time Saudi champions Al-Ittihad with an option to sign for another season. On 7 November 2021, Sierra was appointed as the manager of Saudi Arabian club Al-Tai. On 20 October 2022, Sierra was appointed as manager of Al-Wehda. Managerial statistics Honours Player He played in Chile on the national soccer team for nine years, from 1991 to 2000. Club Colo-Colo Primera División de Chile (3): 1996, 1997–C 1998 Copa Chile (1): 1996 Unión Española Copa Chile (3): 1989, 1992, 1993 Primera División de Chile (1): 2005–A Individual Chilean Footballer of the Year: 2005 Manager Club Unión Española Primera División de Chile (1): 2013 Transición Colo-Colo Primera División de Chile (1): 2015 Apertura Copa Chile: Runner-up 2015 Ittihad FC Saudi Crown Prince Cup 2017 King Cup: 2018 Individual Saudi Professional League Manager of the Month: April 2019 References External links 1968 births Living people Footballers from Santiago Association football midfielders Chilean people of Asturian descent Chilean people of Spanish descent Chilean footballers Chilean expatriate footballers Chile international footballers Unión Española footballers Real Valladolid players São Paulo FC players Colo-Colo footballers Tigres UANL footballers Chilean Primera División players La Liga players Campeonato Brasileiro Série A players Liga MX players 1998 FIFA World Cup players 1993 Copa América players 1995 Copa América players 1999 Copa América players Expatriate footballers in Spain Chilean expatriate sportspeople in Spain Expatriate footballers in Brazil Chilean expatriate sportspeople in Brazil Expatriate footballers in Mexico Chilean expatriate sportspeople in Mexico Chilean football managers Unión Española managers Colo-Colo managers Ittihad FC managers Al Ahli Club (Dubai) managers Club Deportivo Palestino managers Al-Ta'ee managers Al-Wehda Club (Mecca) managers Chilean Primera División managers Saudi Professional League managers UAE Pro League managers Chilean expatriate football managers Expatriate football managers in Saudi Arabia Chilean expatriate sportspeople in Saudi Arabia Expatriate football managers in the United Arab Emirates Chilean expatriate sportspeople in the United Arab Emirates