Former Chelsea goalkeeper Robert Green believes the Blues have improved as a defensive unit in recent weeks.

The arrival of new keeper Edouard Mendy has coincided with a run of fewer goals conceded, compared to the Blues previous set of games.

He has kept seven clean sheets in nine games since arriving from Rennes. But Green believes it is a team effort.

The former Chelsea keeper told Sky Sports: "In five games he's made seven saves, so that highlights how well Chelsea have marshalled it.

"When you are looking at it, you are looking at it with Thiago Silva and with Reece James obviously has played a lot, and there is [Cesar] Azpilicueta and Kurt Zouma.

"They have continuity in their defenders and when you have that coming into a club, the ability to be able to communicate is key.

"Thiago Silva has been in there, his positioning sense, his ability to pull people around and get them into the positions that he wants to.

"In the West Brom game where he had his slip and the team looked open and exposed is one that they have really managed to bring together.

"The trust is there. The defence puts trust on the attack at Chelsea, that the guys up front will score goals.

"They can take a bit more of a conservative view with it. You look at Ben Chilwell, he is up there every week getting goals, assists and causing havoc in the opposing area.

"With the goalkeeper, I think he has looked assured. Playing out from the back is something that can be worked on, but they have managed to change the style of play slightly and it has really suited them.

"They have got big tests in the future but so far they are flying."