Andy Robertson appeared to suffer an ankle injury for Scotland in what could be a blow for Liverpool.
the left side He had already missed much of the season due to a shoulder injury he suffered while playing for his national team in October.
Robertson returned to full fitness and regained his place in the Liverpool starting eleven, but now could face another setback.
During Scotland's friendly against Northern Ireland, he fell holding his ankle before getting back to his feet.
However, moments after his Liverpool team-mate Conor Bradley scored for Northern Ireland, Robertson had to be substituted.
The 30-year-old looked distraught before leaving the field of play, and Reds fans certainly have cause for concern.
Robertson becomes the latest in a long line of injuries to other Premier League title-chasing teams, with Arsenal star Bukayo Saka withdrawing from England ahead of the defeat to Brazil.
Meanwhile, Kyle Walker and John Stones also suffered knocks while in England.
Robertson has made 20 appearances for Liverpool this season and has been key in ensuring they remain title contenders.
Success in the Premier League is not their only goal, however, as the Reds will face Atalanta in the Europa League quarter-finals.
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However, they could be without Robertson for their next crucial games in the run-up to the season.
Kostas Tsimikas could replace him in the starting eleven, and Joe Gomez could also play at left back.
