The teenager is fresh from his first full campaign in Ole Gunnar Solskjaer’s squad, in which he bagged 17 goals in all competitions.
Those impressive showings have earned Mason plenty of admirers, including England manager Gareth Southgate, who last week selected the attacker in his Three Lions group for the first time.
It’s less than 18 months since Greenwood made his United debut and, after being handed several cup games to demonstrate his abilities, the youngster has now become an established part of Ole’s first-team plans.
Having faced, and dealt with, so many new experiences in recent times, Mason isn’t fazed by stepping up to the international scene.