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The Northern Ireland international was forced off with a muscle injury, shortly after being introduced as a substitute, during the 2-2 draw with Aston Villa.
It is the latest injury setback for the 21-year-old after an impressive season under the Dutchman's debut campaign.
His issue comes during an important period for Liverpool as they sit 11 points clear at the top of the Premier League, in the Champions League knockout phase and continue to prepare for their Carabao Cup final against Newcastle United next month.
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"I cannot tell exactly how many but it is clear that he went off with a muscle injury and that it is going to take a while before he is back."
Maintaining the fitness of the three defensive options becomes increasingly important given the upcoming run, starting with Newcastle United visiting Anfield on Wednesday night.
A knee injury kept him out of the Carabao Cup final win last year and hampered his involvement during the title challenge in the latter stages of Jurgen Klopp's tenure.
This season alone, the 26-year-old has had two stints on the sidelines with a hamstring injury, most recently which kept him out of the Carabao Cup semi-final second-leg win over Tottenham Hotspur and the FA Cup exit.
The staff at the AXA Training Centre have monitored Alexander-Arnold's fitness since his recent hamstring problem.
So yeah, you have to take care of them, especially in a period of time where you play so many games."
While there is the case not to rush back Bradley from his injury, there is a stronger argument to continue monitoring Alexander-Arnold's involvement, while ensuring Quansah is up to match-sharpness after being brought on in each of the last three Premier League matches
The evidence is on display for their Premier League rivals, who have been clear in their struggles after mounting problems on the treatment table, the Reds have to ensure that they don't play themselves into a defensive crisis - with such an advantage in the title race.
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