Buenos Aires:Argentina continued their assured journey to the World Cup finals with a 1-0 win over 10-man Colombia on Wednesday, the goal coming from AC Milan striker Hernan Crespo. Crespo scored in the 61st minute as Argentina beat Colombia in a South American World Cup qualifying match. Colombia were reduced to 10 men in the 41st minute when Fabian Vargas was sent off for a second yellow card offence. Argentina are now at the top of the group with 28 points from 12 matches. Colombia remain in the seventh place with 14 points, and will aim to secure fifth place and a play-off with the Oceania champion for another berth.