#3 Ben Woodburn (19 years old)
Ben Woodburn is on loan at Sheffield United, but he shouldn't be discounted. He has mostly featured as a substitute for Sheffield United. This isn't ideal, but he has looked solid whenever he has come from the bench.
He is Welsh, so he is in good company on international duty. Learning from Gareth Bale and Ryan Giggs is by no means a bad position to be in. Bale and Giggs are some of the best in their positions throughout history, so Liverpool fans will be more than delighted.
Should he take the advice of these authority figures, then Woodburn will surely flourish into a star. Upon arriving back with Jurgen Klopp, he's only going to learn even more about the game. Liverpool will reap all the benefits, continuing their fine attacking legacy.