Alexander-Arnold, who made three appearances on the road to the semi-final, receives a big honour considering his lack of experience at just 18, shining at right-back when called upon.
And Sturridge, who scored four goals in four games in the cup, was named alongside Bristol City striker Tammy Abraham up front.
Liverpool joined Southampton in having two representatives in the team of the tournament, with no other side having more than one player included.
This means Sturridge beat Zlatan Ibrahimovic, who scored twice in the final at Wembley Stadium, to the XI.
It is scant consolation for Liverpool’s failure to beat Southampton in the semi-finals, but serves as acknowledgment of their excellent performances throughout.
He has made eight appearances in total for the Reds, serving as an able deputy to first-choice right-back Nathaniel Clyne.
Klopp is clearly willing to trust the West Derby native, also naming him on his substitutes’ bench in the Premier League a further seven times, moving ahead of Connor Randall in the pecking order.
With just 13 games left to play before the end of the season, it is unlikely Alexander-Arnold will feature much between now and May—but this award serves as another milestone in his development.