He'll need to have it taped to ring finger for awhile. Lack dexterity in it for awhile, it'll swell and be stiff and ache.
Gonna be hard for him to catch passes. And when that ball hits the tip of his pinkie, when he stiff arms and a helmet or pads hit the end of that pinkie, it's going to hurt pretty good. Increased chances of dislocation, too, due to the stretching of those ligaments.
Cold days suck too, makes it ache.