Former Chelsea forward Tony Cascarino believes manager Jose Mourinho is the main reason behind the club's title success last season.

The Portuguese clinched the Premier League title last term, prompting Cascarino to claim that Mourinho could guide any side, including Arsenal, to the premiership.

"The difference between Chelsea and their rivals is the manager," Cascarino told Sky Sports.

"I believe that if Mourinho was manager of Arsenal, he'd have won the league. Likewise with Man City. That's the quality he brings.

"John Terry said Petr Cech is worth 15 points. Maybe so. Mourinho is worth more than that to Chelsea.

"We saw two Chelseas in the season. We saw a very entertaining one and then, when it got tight, they became tight and didn't give too much away. That's to do with the manager."