Manchester United have set their sights on a stunning Tottenham triple swoop this summer, Football Insider understands.

The Premier League giants are keeping close tabs on centre-back, Toby Alderweireld, right-back Kieran Trippier and central midfielder Eric Dier as they prepare to overhaul their squad.

A source close to Spurs has told Football Insider that the club are aware of United’s interest in the trio and Mauricio Pochettino may be ready to let them all go in the forthcoming window.

Toby Alderweireld has a £26million release clause in his contract that comes into effect this summer after talks over an extension broke down last year.

Spurs are unable to stop the Belgian defender leaving if a club meets the asking price, but they are open to offloading long-serving duo Trippier and Dier at the right price.

As revealed by Football Insider, chairman Daniel Levy values England international Trippier far higher than the sums suggested in Italian reports amid Napoli interest.

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He has slapped a £50million price tag on the right-back, who has a contract that runs until 2022.

Dier has a deal that ends in 2021 and this summer represents a crunch time for the England international, who has had a disappointing season and was omitted from the side that lost to Ajax in the Champions League semi-final first leg on Tuesday night.

Pochettino has to raise funds from summer sales to bump up his transfer kitty and he is set to be ready to listen to offers for Dier.

In other Spurs news, it can be REVEALED the club have secured a stunning multiple-million pound windfall heading straight to the transfer kitty.