Six of Michael O’Neill’s France-bound squad came through the ranks at Old Trafford, although only defender Paddy McNair is still with the club.
Jonny and Corry Evans, Oliver Norwood, Craig Cathcart and Luke McCullough all learned their trade under the Ferguson regime before moving on.
Yet Reading midfielder Norwood is convinced the values instilled by the peerless Scot are continuing to do Northern Ireland proud.
“It might sound silly, but the United lads were brought up properly,” he said. “We worked under the regime of the best manager who’s ever managed in football, Alex Ferguson.
“What he passed through that club – to the youth team, to every academy boy - that’s something we can look back on with pride. We were all together there and now we’re all together here at Northern Ireland.
“We were brought up in a proper football club, training every day with world-class players, but seeing they’re just normal people. I don’t think you’ll ever see a ’big time Charlie’ coming out of that Manchester United system because it’s not allowed there.”
The Old Trafford effect has not been lost on manager O’Neill either.
“There’s a number of our players who have that same good grounding,” he said, having watched his side seal top spot in Group F with a 1-1 draw in Finland.
“They may have come away from Manchester United, but they’ve fought back from that disappointment and developed careers for themselves.
“Some of them, like Cathcart, are back in Premier League and some are in the Championship, but now they’re here performing on the international stage and they’re going to get the chance to go to a major finals.”