Argentina’s loss to Brazil has put a dent in their hopes of qualifying for the 2018 world cup, and Mascherano will make no excuses for the loss.
Brazil thrashed the Albiceleste 3-0 at the Belo Horizonte, condemning Bauza’s men to four straight games without a win.
They lie sixth in the standings, with the top four qualifying automatically, but can overhaul third-place Colombia with victory in next Tuesday’s now pivotal clash in San Juan.
“Obviously things have to change. We have to deal with these days and find a way to lift ourselves up,” Mascherano told reporters.
“We have to work on everything that we need to work on. We can’t make excuses. It’s a situation that we can’t lie to ourselves about. We have to get out of it ourselves.”
Sergio Aguero was introduced at half-time to no avail and the Manchester City striker feels confidence is low in the Argentina camp.
“We are not having a good moment and that’s clear,” he said.
“But besides all of this, we’ve looked a little bit at the result and we can look to win on Tuesday.
“The whole group isn’t completely good, but we have another important match and we hope that the people can come to us and that we can be confident on the pitch.”