Former Chelsea star Emannuel Petit believes Frank Lampard will struggle as the club's manager.

The Frenchman says Lampard, who is expected to join the club from Derby this week, does not have enough experience to succeed at Stamford Bridge.

He told PaddyPower: "Frank Lampard has many qualities. He's a very dedicated person, who loves football and has total respect for his team-mates and managers. He is always ambitious. But somewhere in my mind I have a feeling the Chelsea job could have come too soon for him.

"We saw what he brought to Derby County, leading them to the playoffs, but that wasn't the end of the story for them and they ended up failing to earn promotion. He'll face increased expectation at Chelsea, and he knows this, having played for the club for so long.

"He has only just become a manager and needs more experience - with all due respect to Derby, it's not the same managing them as Chelsea. The environment changes every time you go from one club to another. It's a huge step for him, and you can't manage the lives of the players at Stamford Bridge in the same way you can at Derby.

"I haven't yet seen what his vision is as a manager. His Derby team were well organised and worked together, but tactically I want to see specific things from him in the dugout. Added to that, he's arriving at Chelsea at a bad time because he may not have money to spend and Eden Hazard has already left the club. It could be a tough season for him."