Manchester United’s under-21 side have a new challenge as the Premier League International Cup kicks-off. Manchester United’s talented group of academy players have a chance to test themselves up against their European counterparts. The Premier League International Cup group stages begin with Manchester United facing Hertha Berlin. The competition pits the top 16 English under-21 teams from last season against 16 invited European clubs. Last season it was won by Crystal Palace. United kick off with a home fixture against Hertha Berlin, being played at Leigh Sports Village, and you can follow i…