Liverpool staff members have reportedly been left impressed by one youngster who is starting to catch the eye in pre-season. Arne Slot’s side got off to a winning start on their tour of the United States with a 1-0 victory against Real Betis, with a number of youngsters such as Vitezslav Jaros, Luca Stephenson and Ben Doak all impressing in Pittsburgh. With so many academy graduates on in the Liverpool squad, it’s no real surprise that some are starting to catch the eye of the first-team staff, with the Reds missing key players through featuring in the Euros and Copa America. Yet there’s one y…