Premier League winners and losers in transfer window

Manchester City

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Frustrated by the defensive deficiencies that ruined City's bid for a third successive title last season, Pep Guardiola spent over 100 million on a pair of centre-backs.

Nathan Ake was signed from Bournemouth for 41 million, but after the Dutch international was part of a back four that conceded five goals at home to Leicester, Guardiola decided to double down on the position with a 61 million move from Benfica's Ruben Dias.

Dias is regarded as a natural leader and he will need to live up to that billing as City have looked bereft of organisation and fight since Vincent Kompany's departure to Anderlecht last year.

Ferran Torres's 20 million arrival from Valencia seemed an extravagance given City's wealth of options on the flanks.