Chelsea hero Ruud Gullit isn't convinced by Maurizio Sarri's fullbacks.

Despite the impact of Marcos Alonso, Gullit insists they're a weak part of Sarri's team.

He wrote for BBC Sport: "It might seem counter-intuitive considering left-back Marcos Alonso was key to both Chelsea goals on Sunday, but Maurizio Sarri's full-backs are not as effective an attacking threat as their Liverpool and City counterparts.

"When a side sit deep, it is very difficult to unpick them by playing narrow and in front of them.

"I just do not think Alonso and Cesar Azpilicueta are those sort of players.

"Alonso is more like a midfielder - very elegant on the ball, clever with how he uses space and angles - but he does not have the pace to unsettle a defence.

"Azpilicueta played for much of last season as one of previous boss Antonio Conte's three centre-halves.

"The demands on a full-back nowadays are totally different; it is a lot of running at high intensity."