Jürgen Klopp is confident the injury Fabio Carvalho sustained during Saturday’s Merseyside derby isn’t serious.
The midfielder was withdrawn at half-time at Goodison Park after a challenge left him with a dead leg.
Carvalho will now be assessed before next week’s trip to Italy for the Champions League group-stage opener with Napoli.
Klopp told his post-match press conference: "It's not bad. I think it is extremely painful, it is a dead leg on the muscle above the knee and he couldn't bend the knee anymore. When this muscle swells up, there is no space for anything else.
“We have to now see how quickly that will settle. You could see he tried, but you could see he couldn’t run properly. We just waited for half-time and then made the change with Bobby."