Louis van Gaal revealed he gave teenage sensation Marcus Rashford some half-time advance which led to him scoring twice on his Manchester United debut.
The 18-year-old, who started the Europa League game against FC Midtjylland after Anthony Martial pulled out in the warm up, found the net twice in 15 second-half minutes.
The Danish side went ahead after 20 minutes before an own goal, two from Rashford, an Ander Herrera penalty and Memphis Depay all scored in the 5-1 rout.
And Van Gaal was pleased with the second-half showing from his side, particularly that of Rashford who took heed of his half-time advice.
On the 18-year-old’s performance, the Dutch manager told BT Sport: “Unbelievable, in the first half he ran too much, too much on the sidelines, and I said at half-time, ‘You have to be within the width of the goal and you shall score,’ and you see he scores two goals, it is fantastic for him.
“It was a great performance, I think the fans shall have enjoyed our attacking football.”
Rashford was only playing because of an injury to Martial in the warm-up, but Van Gaal said the France international was not set for a long-term lay-off.
“I think he is smart and wise to step out, because it was not a rupture, it was a tight hamstring,” he said. “I don’t think it is very heavy.”