Kyle Walker has claimed Pep Guardiola was the reason he quit Tottenham Hotspur to join Manchester City in a world record deal for a defender.

City completed the signing of Walker on Friday afternoon after finally agreeing a fee with Tottenham Hotspur 24 hours earlier, as first revealed by Telegraph Sport.

Walker has become the world’s most expensive defender, despite claims from City that the final fee cannot exceed the £50m Paris Saint-Germain paid Chelsea for David Luiz in 2014.

Sources involved in the deal have told Telegraph Sport that City could have to pay over £50m once add-ons are factored in and that appeared to be supported by Walker’s representatives Base Soccer.

The agency tweeted a message that read: “We're delighted to have moved ‪@kylewalker2 to ‪@ManCity for a record fee for a defender and record fee for an English player.”

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Walker told Tottenham head coach Mauricio Pochettino that he wanted to leave the club after the victory over Watford in April, in which Kieran Trippier started ahead of him.

The 27-year-old has now got his wish and has signed a five-year contract with City worth around £130,000-a-week, double what he was being paid by Spurs.

But Walker has insisted it was the chance to work under Guardiola, and not the money, that influenced his decision.

“Pep Guardiola is one of the most respected managers in the world and I feel he can help me take my game to a new level,” said Walker.

“I am thrilled to be signing for City and can’t wait to get started.”

Walker’s statement was in contrast to his words in a message he posted on Twitter in 2012 after Tottenham had been beaten by City.

The England international reacted to the defeat by tweeting: “All u man city fans u can talk now we will just see at the end of the season… was u all there when city was no where to be seen #gloryfans”.

A few hours later, Walker deleted the tweet and apologised, posting: “Apologise for this tweet just so gutted about the result today, sometimes football gets the better of u. Night.”

Guardiola and City are not worried by Walker’s five-year-old rant that resurfaced on Twitter on Friday. They are just delighted to have got their man in time for the pre-season tour to the United States.

City had been locked in talks with Tottenham for weeks and Walker’s agent Mark Rankine has been credited with helping to find a breakthrough that suited all parties.

Announcing the signing of Walker, City’s director of football Txiki Begiristain said: “Kyle is a fine full-back, one capable of producing quality at both ends of the pitch.

City are delighted to sign Walker ahead of their US tour credit: AFP/Getty Images

“We’ve followed his progress at Tottenham and have been really impressed by how he has developed. He is now one of the best right-backs in the Premier League and justifiably an England regular.

“I am sure he will be a success at Manchester City this season and beyond.”

City will now turn their attention to trying to tie up the signing of left-back Benjamin Mendy from Monaco.

Having already had at least one bid turned down for Mendy, City are confident of making progress in negotiations – particularly after the 22-year-old was left out of Monaco’s pre-season tour to Switzerland.

Although Spurs have a ready-made replacement for Walker in Trippier, Pochettino is on now on the lookout for another right-back.

But Tottenham are looking at alternatives to Porto’s Ricardo Pereira after interest in the Portuguese was complicated by a dispute over who represents him.

Sevilla are close to signing Nolito in a €9 million deal from City. The Spain forward has endured a miserable past 12 months at City following a £13.8 million move from Celta Vigo and recently complained about life in the city.