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Gus Poyet has told Tottenham it's time to stand up and show the world they mean business by ensuring Dele Alli remains at the club.
The north London club have a history of selling key players at their peak of their careers, including Michael Carrick, Dimitar Berbatov, Luka Modric and Gareth Bale.
With Spurs prospering under Mauricio Pochettino, a number of the current squad are attracting attention from rival clubs.