Edgardo Bauza has total faith Argentina will reach the 2018 World Cup, despite his side's poor qualifying campaign so far.
A humbling 3-0 defeat to Brazil in Belo Horizonte on Thursday left Argentina in fifth place in the South American table, with just four wins from 11 matches.
A loss to Colombia on Tuesday would leave the two-time world champions facing a huge task to secure one of the four automatic qualifying spots for the finals in Russia.
Bauza, however, remains confident in his players and has urged them to demonstrate their true quality in San Juan.