Former Tottenham boss Harry Redknapp isn't convinced about Chelsea pair Kai Havertz and Timo Werner.

Redknapp wrote for The Sun: "For Frank Lampard at Chelsea, it is almost as if he has too many pieces in his puzzle at the moment. You wonder if he yet knows his best team. If anyone does. Where do they all fit in?

"I say this with regard to his two Germans in particular. I'm still waiting to see the best of Timo Werner and Kai Havertz.

"They cost a lot and even though they're only young lads, they came here in the summer with big reputations. Yet to be fulfilled, if you ask me.

"Frank at Chelsea has a puzzle to solve with his squad. He needs to work out where is the best position for Werner and how to get Havertz firing.

"Should Werner come in from the wing and play through the middle with Mason Mount putting little balls through for him? It's an option.

"Havertz doesn't seem to have got to grips with the physicality of English football yet."