Manchester United attacking midfielder Shinji Kagawa has revealed he is 'irritated' at Old Trafford.
The Japanese has failed to replicate the fine form he had shown at his previous side Borussia Dortmund before he sealed a £17million move to Manchester United.
Kagawa has been used sparingly this season - starting just seven Premier League games since the start of the campaign.
The former Dortmund playmaker has failed to score or claim an assist this season, which has resulted in David Moyes choosing to play the likes of Antonio Valencia, Adnan Januzaj and Ashley Young ahead of Kagawa.
Kagawa has admitted his performances this season has been poor and has stated he is hoping to regain the kind of form that made Manchester United splash £17million on the Japanese international.
Kagawa, speaking to SkyPerfecTV, said on his recent form: "I still haven't scored any goals this season so I've felt very irritated.
"This is the first time in my career that I haven't been able to produce, so it's disappointing.
"I pressure myself to score in every game but some days it feels like I just can't win. I know I have to overcome that; actually if I can't it really shows that I haven't grown as a player.
"So because of that I have to really focus on the second half of the season and overcome that mental block."
The 24-year-old will be hoping he can get some regular first-team football under his belt before next summer's World Cup in Brazil.
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