Manchester United have confirmed that their defender Luke Shaw has been sidelined for up to a month with a hamstring injury.
The 19-year-old teenager picked up an injury during training this week and will miss the first four Premier League games.
The England left-back, who was a member of 2014 World Cup Squad – joined the Red Devils from Southampton earlier this summer, will have to wait for his debut.
Shaw may not be available until the mid of September, the news will come as a major blow to Van Gaal’s preparation ahead of the Premier League opening game against Swansea on Saturday at Old Trafford.
The club also confirmed that the former Southampton defend will wear No. 3 shirt once he return to the field.