Recap: NYCFC takes down Union in season finale
Matarrita, who was a late pregame sub for the injured Heber, put NYCFC in front on seven minutes, completing a nice buildup that started with him combining with Maxi Moralez, who slipped a pass to Ben Sweat.
Sweat played the ball back to the edge of the 18-yard box to Taty Castellanos, who slipped in Matarrita, who took a settling touch before finishing with his right foot from 10 yards out.
The visitors doubled their advantage in the 22nd minute as Tajouri-Shradi spun out of the 18-yard box and chipped a deflected shot past Andre Blake. Tajouri-Shradi would leave the match 10 minutes later, suffering an ankle injury, replaced by Jesus Medina.
The Union had a golden chance to pull within a goal before the break, but Sean Johnson denied an Andrew Wooten header at the goal line. Philadelphia pulled a goal back three minutes from full time when Marco Fabian scored from the penalty spot after Ebenezer Ofori was called for a handball in the box.