United failed with a €46million bid for the highly-rated forward last week, but are now ready to make a new move.
Spanish newspaper AS says United are now considering making a €40million plus Portuguese winger Nani bid for Aguero.
But it is believed Atletico would prefer getting a striker in exchange instead.
Reports says that United instead could make a €20million plus striker Dimitar Berbatov bid for ‘El Kun’.