Signing of World Cup winner adds to sense that this is the summer when BlueCo got serious in transfer market

Carlo Cudicini was a very good goalkeeper. However, José Mourinho was ruthless when he became Chelsea manager in 2004. Very good was not good enough. Mourinho wanted the best and one of the main factors behind the Portuguese winning the Premier League during his first season in charge was the decision to replace Cudicini with Petr Cech.

There is an old line about a great goalkeeper being worth 15 points a season. It is not for nothing, for instance, that Brian Clough regarded Peter Shilton as one of his most important signings at Nottingham Forest. Shilton was key when Forest defied the odds by winning the Division One title in 1978 and there are plenty of other examples of promising teams taking the next step only after buying a top No 1.

• Spurs head coach pushing for ‘one specific position’

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Roberto De Zerbi is keen to add one more signing to his Tottenham squad and has said outgoing deals are also possible before Tuesday night’s transfer deadline.

De Zerbi had dinner on Thursday night with Spurs’ owners and key executives and they discussed a final push to a window that has already exceeded his expectations. The manager welcomed Omar Marmoush to the club on Thursday from Manchester City and is preparing to involve him in Saturday’s home game against Newcastle. Spurs have also been linked with a move for Liverpool’s Cody Gakpo.