The right-back makes his first start for the Reds since November 8 after recovering from injury and wears the armband as they wrap up their Group D campaign in Denmark.
It represents the latest landmark moment in the Scouser’s career on what will be his 147th appearance for the club since breaking into the senior set-up in 2016-17.
A Champions League and Premier League winner with Liverpool in the previous two seasons, Alexander-Arnold tonight skippers the team he has supported since childhood.
Jürgen Klopp’s side have already secured qualification for the Champions League last 16 and guaranteed top spot in the section.