We must all remember there are no friendships out on the pitch.’ Manchester United pair Angel di Maria (left) and Marcos Rojo and Man City defender Pablo Zabaleta (right) The Argentine trio were taking part in an event ahead of the Manchester derby on Sunday an Di Maria insists he will embrace his fellow countrymen in the tunnel before the game but he 'has not friendships on the pitch' Argentina star Angel di Maria (left), who has reinvigorated Manchester United, tries to beat Nemanja Matic .
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