 Trusty's efforts paid off midway through the 2016 season when he signed a Homegrown Player contract with Philadelphia Union on August 10, 2016.He was the second homegrown signing of 2016, following fellow Bethlehem Steel FC teammate Derrick Jones.In 2018, Trusty made 34 regular-season appearances (34 starts) at centerback, totaling one goal and one assist.