Chelsea legend Ruud Gullit feels Jose Mourinho must deliver silverware this season.
Gullit insists Mourinho has received the backing of the club's board by being able to sign Diego Costa and Cesc Fabregas this summer.
"Jose is not used to being without trophies," said the Dutchman, who left the Bridge in 1998 and is now a pundit for Sky Sports. "He wants to win something and this year it has to happen. With the squad they have, they need to win something.
"That's what Jose wants and the reason he bought these players. He didn't have the striker he wanted and now he has it. Now it's time to produce.
"He wanted a player who could do what Didier Drogba did for him. He was looking for a player with the same style: powerful and strong, with good technique, someone who can hustle the opposition.
"Diego Costa is that player. Can he do it in the Premier League? We are going to see. Fabregas hustles and works very hard. He makes sure to keep the opposition busy and can score goals."
