The transfer window officially opened this morning and it promises to be a busy summer of activity with several big deals expected to take place involving the clubs at the top of the Premier League. Here we take a look at what is in store for the big six — what they need, who they might get, and who might be leaving.

Wan-Bissaka is attracting the interest of several Premier League clubs STEVE BARDENS/GETTY IMAGES

MANCHESTER CITY

What do they need?

A centre back to provide competition to John Stones and Aymeric Laporte, who have been Pep Guardiola’s first-choice centre backs for most of the season. Nicolás Otamendi wants to leave, and despite his excellent form towards the end of the season, Vincent Kompany remains injury prone and he turned 33 last month. City could do with cover