Thiago Alcantara will miss Liverpool's friendly games with Bologna on Thursday although manager Jurgen Klopp insists the midfielder's injury is not serious.
The Spain international joined up with the Reds' pre-season training camp in Evian last week after helping his country to the semi-finals of Euro 2020.
Klopp explained the former Bayern Munich and Barcelona playmaker arrived with a pre-existing complaint and he is not willing to take undue risks with the start of the Premier League season just nine days away.
"Thiago came here with a slight issue. He has three weeks off and the slight issue is still [there], which he was feeling," Klopp told his club's official website.
"We don't take any risks. He's part of parts of training and in these little things he looks great, but it's more the longer distances where he struggles slightly.
"We have to make sure that will be sorted and we are on it. I think he will be in next week, [at the] latest, in full training."
Liverpool will play back-to-back 60-minute friendlies against their Serie A opponents as they step up preparations for an opening weekend trip to newly promoted Norwich City in the English top flight.
Brazil trio Alisson, Fabinho and Roberto Firmino are back with the squad and are likely to feature for 30 minutes apiece.
"They will have game time. We have to use the games now. We will see. We play twice 60 minutes, between the two games is an hour break, so we can give them 30 minutes to play," Klopp explained.
"Ali maybe slightly longer but 30 is probably enough for the first few minutes standing in the goal again in a competitive game.
"So it's really good that we can do that and everybody gets minutes. Most of the players will now play 60 minutes obviously but the ones who came back later probably max 30. But it's cool."