Liverpool star Fabinho may be facing a spell on the sidelines after suffering what appears to be a hamstring injury.
The Brazilian limped off 30 minutes into this evening's tie against FC Midtjylland after pulling up clutching the back of his leg when tracking back.
Fabinho went down to receive treatment but didn't attempt to play on, swiftly being replaced by Rhys Williams, 19.
The injury adds to Jurgen Klopp's woes, given that the former Monaco man was already filling in for the injured Virgil van Dijk.
Klopp rested a host of his key men in Denmark this evening due to a hectic schedule.
A schedule that may have contributed to Fabinho's injury this evening.
“I don’t want to sound like a moaner but I don’t think I would mention it so many times if nobody asked me,” Klopp said.
“Then I get asked, we are all part of this you are part of it, it’s the Champions League playing Wednesday then Tuesday and then it’s what the Premier League is throwing at us after that.
“I think everybody would agree if you play Tuesday then you can play Saturday lunchtime, but somehow the Premier League always puts the Wednesday European game last on a Saturday."
Fabinho was the hero in the last Champions League tie, as Liverpool beat Ajax last week.
Just before the end of the first-half, former Southampton star Dusan Tadic looked to have found the back of the net after lobbing Adrian.
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However, Fabinho had other ideas, producing an acrobatic goal-saving clearance.
Speaking to Liverpool's official website after the game, Adrian was full of praise for Fabinho, saying: "I was expecting that performance from Fabi.
"He's a top player, top players adapt to the position. It's not a new thing for him because he played before in that position last season, even at Monaco [he] played a few times in that position."