Van Gaal hit by Carrick injury blow
Manchester United's English midfielder Michael Carrick (L) vies with Sunderland midfielder Sebastian Larsson during an English Premier League match at Old Trafford in Manchester, northwest England on May 3, 2014 - by Andrew Yates
Carrick was injured earlier this week and, although van Gaal didn't reveal the precise nature of the problem, he admitted the former Tottenham Hotspur star would be sidelined for a significant period.
Carrick, who was left out of England's World Cup squad, had appeared likely to be a key part of van Gaal's plans in the Dutch coach's first season at Old Trafford.
But the former Netherlands boss will now have to wait longer than he would have liked to use the 32-year-old.
"Michael Carrick was injured a day or two ago so that's a big blow, because he is an experienced player," van Gaal told reporters at his first United press conference on Thursday.
As he stood up to leave the media briefing at Old Trafford, van Gaal responded to a follow-up question by saying Carrick would be out for "a long time, too long", but gave no details of the injury