The defender came on at half-time of the gruelling triumph over Lyon on Thursday night and is, understandably, being treated carefully after only making his return to action in the defeat at Newcastle United last week, his first appearance of the calendar year.
Indeed, the England international has not started a game for the Reds since the win at Luton Town last season, so Ruben Amorim has decided not to play him against the in-form visitors.
We can confirm that Luke has trained today at Carrington with no issues and the reason for his absence is purely to give him a rest, after playing for 75 minutes against Lyon, and helping the Reds stage that incredible late comeback.