Liverpool boss Jurgen Klopp is hoping Daniel Sturridge's thigh injury does not turn out to be serious.
The striker, a second half substitute in Tuesday's Audi Cup match against Bayern Munich at the Allianz Arena, picked up the injury as he scored the final goal in the 3-0 victory.
Asked how bad the injury was, Klopp told a post-match press conference: "I can't say yet. He hurt his thigh.
"He has prepared well, really well, so I hope this is just a small injury and that he can play again soon.
"The goal was great and he had a chance just before that. You could see how fast he is.
"It's a shame and I hope it's nothing serious."
Sadio Mane and Mohamed Salah found the target for Liverpool in the first half of a victory which earned a match against Atletico Madrid on Wednesday.
The Reds start their Premier League campaign at Watford on August 12.