Remember the 2014 MLS Eastern Conference final? Sure you do: the New York Red Bulls lost to New England Revolution, 4-3 on aggregate.
Before the Red Bulls lost the series, however, they lost star striker Bradley Wright-Phillips for the second leg thanks to this yellow card:
That is called "interfering with the goalkeeper's release of the ball" or encroachment. The yellow card was harsh, but it is a foul. It's part of IFAB's Laws of the Game:
A goalkeeper cannot be challenged by an opponent when in control of the ball with the hands
And, as pointed out by The Bent Musket's refereeing expert Jake Catanese, it's not a law that is unfamiliar to US Soccer officials.