Liverpool boss Jurgen Klopp says he has "no idea" when Daniel Sturridge will be fit enough to return to the Reds squad.

Sturridge has missed three games with a calf injury which has also kept him out of training, and the England international will be sidelined for at least two more.

Klopp said: "Hopefully he will be back as quickly as possible, but I have no idea.

"I can't make pressure with making timelines. He is not in training with the team at the moment so we don't have to think about him for the team with West Ham and Middlesbrough but maybe then.

"What's the game after Middlesbrough? Everton? Oh! That would be nice, but I have no idea.

"Until now he hasn't trained. He will be on the pitch today but that means starting the work. He won't be with the team.

"He's not happy. That is the life of a footballer. You can't force these things."