Lisandro Martínez has come under criticism in recent weeks, despite being heavily praised for speaking out in the post-match interview in Madrid. 

The Argentine was sent off for two yellow cards in the space of just over one minute against Chelsea, which saw him dropped to the bench for the Champions League tie against AS Roma. 

Martínez and Shea Lacey came on together in the second half, but while Lacey received a cheer, Martínez was booed on – something rarely seen at Old Trafford. 

Martínez was called up for international duty as Argentina faced Uruguay in their first match. 

The Manchester United defender played all 90 minutes, but his side lost 2-1, and the Argentine media were not impressed by his performance. 

Martínez started alongside Leonardo Balerdi, and was not at his best when his centre-back partner netted an own goal. 

TyC Sports, a well-known Argentine outlet, said after the game that Martínez was "not enjoying" his football at Manchester United, and it showed in his performance. 

"He’s not enjoying his best form at United, and it showed somewhat in his confidence and understanding with his centre-back partner," they said as Martínez was handed a 5/10 rating. 

"While he didn’t make any major errors, his involvement in Uruguay’s first goal wasn’t his best and didn’t live up to his other excellent performances.

"He had to be overly alert in his tackles due to Balerdi’s poor positioning." 

Pochettino will be disappointed to hear of Martínez's poor performance, but will be hoping he can turn his countryman's form around. 

Nicky Butt has already described their relationship as "interesting."

Since his comments after the 2-0 defeat to Atletico Madrid, there have been some suggestions that Martínez wants out of Old Trafford. 

But whether he likes it or not, he has been given one final chance to impress at Manchester United. 

Mauricio Pochettino will have Martínez available for the trip to Anfield, as he was only handed a one-game suspension for his red card at Stamford Bridge, though Harry Maguire and Matthijs de Ligt are among the few who have not been called up to international duty. 

Ayden Heaven and Leny Yoro will also be hoping for regular game time under the new boss, though Pochettino may favour experience over youth as he looks to bed in a new style of play. 

The former Spurs head coach has been known to choose young players: during his time at Tottenham Hotspur, he handed more debuts to players aged 21 or under (21) than any other manager. 

With that in mind, Martínez will know he needs to impress from the very start if he wants to remain a Manchester United player beyond the end of this season. 

His current deal expires at the end of the campaign.