One slightly less publicised area that Chelsea will need to look at bringing in one or two reinforcements in depending on circumstances, is the goalkeeper position.
The Blues have Edouard Mendy and Kepa Arrizabalaga as the main two options in the sticks right now, but there are still doubts over the immediate future of Kepa.
As well as this, they have just lost experienced third choice keeper, Willy Caballero, so they will definitely need to replace him at the very least.
There is also the added factor that the club will lose Mendy for a period of time this season due to his participation in the African Cup of Nations.
So Chelsea need at least one new goalkeeper, and he will need to be pretty decent.
According to The Telegraph, as I exclusively reported first on my own website Si & Dan Talk Chelsea at the start of July, Chelsea are considering former Manchester United goalkeeper Sergio Romero as a backup keeper this summer.
Romero became a free agent at the end of June.