Former Chelsea defender Frank Leboeuf slammed Chelsea’s Champions League performance against Dinamo Zagreb.

Chelsea were uninspiring in their defeat at Zagreb, much to the frustration of Leboeuf.

Leboeuf, who spent five years at Chelsea, was particularly disappointed by England international Mason Mount.

According to Leboeuf, Mount disappeared for much of the game.

He said on ESPN: “I want to talk about Mason because we never talk about him because he’s the little boy from Chelsea.

“But he disappeared! I’m sorry, Mason disappeared. I want to know where he is. He’s fantastic, a great player but his involvement in the game was not enough.

“That was an appalling performance against a very average team.”

Asked how Tuchel can get Chelsea firing again, Lebeouf said: “It’s complicated because they play like robots.

“They don’t want to take any risks, they want to do the minimum to survive and that’s totally not what we expect from them. We expect them to face up and take some risks. They don’t seem able to do that right now.

“I don’t know what they can change because it’s totally in their heads right now. I’m a former Chelsea player but I’m concerned. I love that club but I have to say the truth.”