Liverpool manager Jurgen Klopp has confirmed that striker Daniel Sturridge and midfielder James Milner will not feature against Arsenal this weekend.
The German explained that he will not take any unnecessary risks ahead of a long season in the English Premier League.
Klopp also gave the positive news that Dejan Lovren and Marko Grujic have resumed training with the rest of the squad.
"On Wednesday he [Daniel Sturridge] could train. On Thursday, he felt [it] a little bit so we will have to see," Klopp told reporters.
"Of course, he had a few days where he couldn't train and that's not too good for the Arsenal game, but we have other players who are available and that's good for us.
"Hopefully it stays like this and we can give Daniel enough time so that when he is fit again, he can then become match fit in the next few days. There are a lot of games to play.
"It is nothing serious with him, but it was enough to get him out of training and so now we have to see. It's how I always say, we have to think about the players that are available at the moment and all the other guys have to work as hard as possible to become fit again.
"With Millie [James Milner] we have to wait.
"It's better than we all expected after the [Barcelona] game when we saw him walking out of the stadium on crutches – that's not the best picture you want to see after a game.
"On Sunday he felt better, on Monday he felt better. It's a bruise in the heel, so that's really painful and I can say that when it is too painful for Millie, then it's really painful.
"[We will take] no risk at the moment, we have to wait until everybody says we can go on and that's what we'll do.
"Dejan [Lovren] has been completely normal in training, Marko [Grujic] was back in training on Thursday, it was not serious as I mentioned after the game – painful but not serious."