Ball-turned-dagger came from the left of Crew SC goalkeeper Steve Clark, thrown true and hard by Philadelphia Union rookie Keegan Rosenberry.
It arced through the air, caromed off the top of the head of Wil Trapp and fell to the foot of Union midfielder Chris Pontius, who plunged through a static wall of Crew defenders and tapped in the first goal of a 2-1 Union win Saturday night at Mapfre Stadium in front of 17,015.
Pontius added an goal in the 71st minute before Kei Kamara cut the lead in half with a header in the 87th.