Both teams have been using their young players this season.
Tottenham Hotspur have received plenty of plaudits this season for thriving with plenty of younger players in their first-team squad.
Much of that has been from choice by Mauricio Pochettino and previous boss Tim Sherwood but also necessity, in case of injury.
Injuries have meant the likes of Cameron Borthwick-Jackson, Guillermo Varela, Jesse Lingard and most recently Marcus Rashford have been asked to play more than might have been the case.
However, these four in particular have thrived when thrown into action and Sky Sports pundit Ray Wilkins believes that has been a massive boost for Louis van Gaal this season.
He told Sky Sports News HQ earlier today:
"There are so many young men that have come in. (Marcus) Rashford up front has been a revelation, scoring goals in the Premier League.
"Out of adversity has come a bit of joy for him (van Gaal) because his squad has gone from about 25 to 33.
"He knows he can call on these young men and they will deliver. It is a bit like Tottenham. They don't have the experience of them Tottenham youngsters but what they give you is they give you energy throughout the game. It has been a bit of a bonus."
Tottenham's youngsters have proved more successful, but they also have more experience at a higher level than the young men at van Gaal's disposal.
It may well be that in a few years time these United youngsters will be leading the club back to the top of the English game.