Former Chelsea player Tony Cascarino is adamant the only reason Jose Mourinho is still in his job at Stamford Bridge is because of the support shown for the Portuguese manager by the club's fans.

Cascarino has described the atmosphere within the Blues' dressing room as 'toxic' and believes Mourinho's days at the club are numbered should Chelsea fail to win their next two Premier League fixtures.

"How can this continue? To survive they have got to go on an unbelievable run and be in complete contrast from what we've seen so far," Cascarino told Sky Sports.

"But on this season so far, there's no evidence they can do that.

"He's tried everything. Without six points from Watford and Sunderland I can't see him staying.

"The only people still behind him are the fans. They're still singing his name because they have such affection for him.

"But they're losing football match after football match. Against Leicester they were second best all over the field and that will be a massive concern to everyone at the football club.

"There's fine line as a manager about how far you take criticism of your team. Behind closed doors you can say a lot but when you go public and say it was a 'betrayal', there are a lot of players who won't like that.

"It will make the atmosphere toxic in that dressing room. They'll look at Jose and say 'what about you'?"