Louis van Gaal believes Manchester City's poor form gives United a big chance to snatch a win at the Etihad Stadium on Sunday. City have won five of their last six league meetings with United but they go into Sunday's game on a bad run of form. Manuel Pellegrini's team stretched their winless streak to three matches on Wednesday when they were knocked out of the Capital One Cup by Newcastle. United boss Louis van Gaal was all smiles during the session as he embarks on his first Manchester derby Juan Mata, Michael Carrick, Wayne Rooney, Ander Herrera and Robin van Persie (left to right) train
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Louis van Gaal is looking ahead to his first Manchester derby on Sunday
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Wayne Rooney returns from his three-match ban for the clash
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Radamel Falcao is injured having missed the draw with Chelsea
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Van Gaal says this will be the biggest derby he has managed
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Dutchman also admits Man City have not been good in recent matches
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United lost the Manchester derby by an aggregate of 7-1 last season
'It is not the greatest moment of @placeholder,' he said.