Lionel Messi is frustrated and desperate to turn Argentina's World Cup around, according to Javier Mascherano.
Jorge Sampaoli's men are facing a group-stage exit in Russia after collecting just one point from their opening two games.
Messi, who turned 31 on Sunday, is yet to score or provide an assist at the showpiece event, while he had a penalty saved during a 1-1 draw with Iceland.
The star, along with his team-mates, came under heavy criticism following a shock 3-0 defeat to Croatia in the second game of the group.