Argentina drew 0-0 with Paraguay in Asuncion on Wednesday morning in their second World Cup qualifying match, and have now gone goalless in their past two games.
There was an early penalty shout for the Paraguayans in the third minute when debutant Dario Lezcano went down in the area after some minimal contact, but the referee played on.
The hosts looked the more comfortable side in the opening minutes of the game, with the Albiceleste struggling to take control of the ball in midfield.
Argentina eventually found their rhythm, though, and in the 21st minute, clever play from Angel Di Maria produced a golden opportunity for Carlos Tevez, but the former Juventus striker failed to hit the back of the net.
The half ended with the Albiceleste having another chance on goal, and this time it was Ezequiel Lavezzi's strike that was saved by Paraguay goalkeeper Antony Silva.
After the break, it was Argentina who were the livelier team, with Di Maria's long-range effort going just wide after the Paris Saint-Germain attacker had shown some clever trickery and control outside the area.
In the 58th minute, Paulo Dybala looked set to replace Tevez, who'd just been bandaged up by medics following an elbow to his face, but the Boca Juniors striker insisted he was fine to play on, forcing the Juventus youngster to wait a little while longer to get on to the pitch.
Dybala did, eventually, come on for his debut, but the match ended 0-0 in Paraguay. With no goals on display, Lionel Messi and Sergio Aguero were notable absentees.
Argentina started their World Cup qualification campaign with a draw and a defeat and currently sit outside the qualification spots with just one point.
Uruguay 3-0 Colombia
The Uruguayans kept up their impressive start to the 2018 World Cup qualifying campaign thanks to a brace from Diego Rolan and a goal from Diego Godin.
Uruguay now sit in top spot of the South American World Cup qualification log, having won both opening games, while Colombia dropped to six spot with one win and one defeat.