Chelsea full-back Cesar Azpilicueta is confident that summer signing N'Golo Kante will prove to be a key player for the Blues this season.

The France international, who joined the Blues in a £32million deal from Leicester City, made his official debut for his new club in the 2-1 win over West Ham United on Monday night.

"N'Golo is a big help to the whole team, he covers a lot of space and makes really good interceptions," said Azpilicueta.

"He's clever with the ball and makes good passes so I think he will be a key player for us."