World's most expensive XI

Center-back: Aymeric Laporte

Manchester City spent a bomb to sign up the 24-year old French defender.

Transfer: Athletic Bilbao to Manchester City.

Transfer fee: € 65 million

There's no question about Pep Guardiola's penchant for spending money. An analytics report put him as one of the top spenders in footballing history - this transfer clearly shows why.

After spending a massive amount to sign John Stones from Everton, Guardiola went one step further by buying Laporte from Athletic Bilbao.

With Vincent Kompany's prowess waining, the 24-year old's partnership with fellow central defender will surely be the one to watch out for in the upcoming seasons. His technique on the ball and the aerial presence might turn out to be a keystone in City's rock-solid defense.