Manchester United striker Javier Hernandez has grown frustrated with life at Old Trafford, according to Mexico boss Miguel Herrera.
The Red Devils forward has struggled for games this season as he is behind Robin van Persie, Wayne Rooney and Danny Welbeck in the pecking order.
Hernandez has made just four Premier League starts this season as David Moyes has preferred to use the 25-year-old from the substitutes' bench.
The Mexican international took to Instagram on Sunday to post a cryptic message in which he appeared to reveal his unhappiness at Manchester United.
Hernandez, who joined the Premier League champions from Mexican side Chivas de Guadalajara in 2010, was linked with a move away from Old Trafford in January but wanted to stay and fight for a place in Manchester United's starting line-up.
However his international boss has revealed Hernandez is becoming disillusioned with life under Moyes due to the lack of first-team opportunities he has received this season.
Herrera, speaking to the Daily Star, said on Hernandez's future: "He is a bit frustrated because he doesn't play despite training well and the truth is that when he does play, he makes a huge effort on the pitch.
"He is a bit frustrated because the current manager doesn't give him many chances, but he is committed and doing what he can to become a starter.
"He likes to work and likes to show determination to achieve his goal."