We must beat Colombia - Argentina coach

Argentina's head coach Gerardo Martino walks during a training session ahead of their 2018 World Cup qualifying soccer match against Brazil in Buenos Aires, Argentina, November 9, 2015. REUTERS/Marcos Brindicci

BOGOTA (Reuters) - After three games and no wins, Argentina simply have to beat Colombia to get their faltering World Cup campaign back on the rails, coach Gerardo Martino said.

"We have to beat Colombia," the coach said shortly after arriving in the coastal city of Barranquilla, where his team will take on the host side on Tuesday.