Manchester City will make Kyle Walker the world’s most expensive defender after agreeing a deal with Tottenham Hotspur that could exceed £50million.

And City want to follow up the capture of Walker with the signing of left-back Benjamin Mendy, who has been left out of the Monaco squad for the pre-season trip to Switzerland.

As first revealed by Telegraph Sport on Thursday, City have agreed to pay £50m for Walker, plus add-ons that could see the final fee reach £53m, to take the right-back to Manchester.

Sources close to the deal have confirmed the figures, despite City claiming they are lower.

David Luiz previously held the title of being the world’s most expensive defender after moving to Paris Saint-Germain from Chelsea for £50m in 2014.

But Spurs chairman Daniel Levy has ensured that City will eclipse that record for Walker if the add-ons are achieved, having also forced Real Madrid to pay a then overall world record £85m for Gareth Bale in 2013.