Jarell Quansah continues his progress and has now featured in his first European game, starting in a 2-0 victory against Union Saint-Gilloise.
The defender was solid most of the times, although sometimes the physicality of the opposition caused him problems.
Jurgen Klopp said of the 20-year-old post-match: "That's part of the development; if you are not ready for that then it's difficult to play, to be honest, in adult football.
"But I was not in doubt about that, that he's ready for that. It's all because of him [that] it was not a difficult decision for us to line him up tonight.
"Still young, we have a really good football team together, [so] it means he will get minutes, he will play U21s as well and stuff like this, but it's nice to see. It's a joy to watch his development since he is properly with us.
"He's a really good footballer on the ball, he is outstanding in that. The chance of Mo in the first half, he would have got the assist – it was top defending, really quick thinking, stepping into it. Probably he feels rather good tonight, I would say. Rightly so."