Former Bayern Munich midfielder Didi Hamann feels Chelsea attacker Kai Havertz doesn't realise how good he is.

Speaking to Genting Casino, the German has praised his compatriot Havertz.

"The one player who's done well and of course scored in the Champions League final is Kai Havertz, but I still think he's only done half of what he's capable of doing because I think he's such a good player," Hamann said.

"Sometimes I feel he's held back, or he doesn't know how good he is, he's an outstanding player," he added.

Hamann likened him to current Aston Villa manager Steven Gerrard, whom he shared many memorable years at Anfield with.

"He's obviously a different type of player to [Steven] Gerrard, but he's a player who's quick, not as quick as Stevie, but he's very smart with his runs. He's a player who can decide a game in a flash."