Chelsea keeper Thibaut Courtois believes Sunday`s game against Man Utd is a must-win

Antonio Conte`s side are currently fourth in the Premier League, nine points behind leaders Manchester City and were thumped 3-0 by Roma in the Champions League on Wednesday.

Last year`s champions have already lost three league games this season and have only kept one clean sheet in their last eight games.

After the defeat in Italy Courtois spoke out about how the clash against Manchester United is a must-win and Nicol concurs.

"I`d have to agree with him," he said.

"They`re nine points behind now, with a Manchester City win and a Chelsea loss that becomes 12 points.

"You can`t give most teams in the Premier League a four-game start, and that is pretty much what it would be.

"So yeah, I`d have to agree with Courtois, things are not going well for them.

"But it`s going to have to be quite a turnaround because not only are things not going well, they`re a bit of shambles.

"Chelsea were a side last year when they won the Premier League that first and foremost you couldn`t get at.

"Courtois never had that much to do, recently, my goodness he`s making saves, he`s picking the ball out the net, you name it. I tend to agree with Courtois."

Conte is under pressure as Chelsea boss amid suggestions that he will be sacked at the end of the season and he`ll be hoping for a positive result in the final game before the international break.

They welcome United to Stamford Bridge on Sunday.

Kick-off is a 16.30.