Manchester United striker Dimitar Berbatov has spoken out about his lack of playing time at Old Trafford, claiming he is "not happy" with his bit-part role at the Premier League champions.

Berbatov, 31, was linked with a move away from United in the January transfer window but no deal was completed and it is now expected that the club will activate a one-year extension to his contract - a clause written into his deal when he signed for the Red Devils from Tottenham in 2008.

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