Trent Alexander-Arnold did not fly with the Liverpool squad for their Champions League fixture against FC Porto.
Jurgen Klopp’s side have landed in Portugal as they look to build on their thrilling 3-2 victory over AC Milan in their first group stage game.
Photos were posted of the squad arriving at their hotel, but there was one notable absentee in Liverpool’s right-back.
The Liverpool team, including Mo Salah, were pictured arriving at their hotel in Porto
Trent Alexander-Arnold was in training on Monday but was not seen with his team in Portugal that evening
The England international had attended an open practice on Monday, but was not among the group of travelers pictured stepping off the team’s coach at their hotel in the evening.
His absence also raises doubts that he will be available for their confrontation with Manchester City, his rival for the title on Sunday.
Alexander-Arnold has withdrawn from England’s Euro 2020 squad after injuring his thigh against Austria in a pre-tournament friendly.
Jurgen Klopp’s side look to build on last win over AC Milan
He recovered in time for the new season, however, and he has made six appearances in all competitions, providing three assists.
One player who could potentially play in his absence is versatile James Milner.
The veteran played right-back in Liverpool’s 3-0 win over Crystal Palace on September 18, when Alexander-Arnold retired due to illness.
Welsh international Neco Williams was in the travel squad after the right-back missed last month with an injury.
Joe Gomez (right) is one of many options who could play right-back instead
Another potential option Jurgen Klopp might choose is Joe Gomez.
Alexander-Arnold’s absence comes despite the Liverpool manager saying earlier that only two players will be unavailable.
At his press conference, he said: “A big, a big team will travel. We have 23 players with us.
“Other than the longer term injuries, I think they’re all in it. So, no Thiago, no Harvey, the rest is available… no new worries for the moment. Hope it stays that way.
If Alexander-Arnold missed the game it would suggest he had a problem during Liverpool’s training session on Monday.