Cape Town - Liverpool's win over Newcastle on Saturday may have come at a cost as Andrew Robertson, Sadio Mane and Divock Origi all picked up knocks.
Origi went off with an ankle injury after just 37 minutes of the 3-1 win at Anfield and will have a scan this week while Mane and Robertson will be checked after minor knocks.
Everyone connected with the Reds will be keeping their fingers crossed for good news as Liverpool continue to go from strength-to-strength this season.
Manager Jurgen Klopp was delighted with the attacking quality his Liverpool side showed with all three of their goals.
The Reds went behind to Jetro Willems' super strike, but answered with quality as Mane struck twice and Mohamed Salah added the third, while many of the plaudits went to fellow forward Roberto Firmino, who set up two goals in an impressive display off the bench.
Firmino started among the substitutes as Klopp looked ahead to next week's Champions League trip to Napoli but he was introduced after the Origi injury.
"You have to play much quicker than we did in the first part of the game," Klopp said. "In the moment we did that we started having chances and we scored two wonderful goals.
"In the second half we scored only one goal but we played really good football and I liked it a lot."
Liverpool have now won all five of their games in an outstanding start to the Premier League season but Klopp felt his side were second best in the early stages.
He said: "I started enjoying it after 25 minutes when we arrived finally in the game. We don't want to have that but it is not unlikely that it can happen. It was really difficult."
The Reds are now five points clear at the top of the Premier League after Manchester City slipped to a shock defeat against Norwich.