After previously spending time with the U14 and U15 national teams, Trapp received his first men's call-up from the United States U18 national team for the 2011 Lisbon International Tournament. The assistant coach for th… See more

Trapp is of Greek descent through his maternal grandfather, a former semi-professional soccer player in Greece. In May 2018, Trapp became a Greek citizen and acquired a Greek passport, potentially allowing hi… See more