Manchester United prospect Harry Amass got another chance to shine in pre-season, amid the club’s left-back dilemma. Neither left-back Luke Shaw or Tyrell Malacia are available for the USA tour. Both players have shaky injury records, leading to Manchester United considering signing a new left-back. No move is considered close, providing an opportunity to academy talents Harry Amass and Sam Murray. While Murray had started against Rosenborg and Rangers, it was Amass selected to start against Arsenal. READ MORE: Who is Harry Amass? Man Utd Age, Position, Nationality, StatsHarry Amass praised af…