 On June 19, 2016 Long scored his first goal for the club helping them to a 2–2 draw at Orlando City B.On June 26, 2016 Long helped New York to a 4–1 victory against the Wilmington Hammerheads scoring the club's second goal of the match.On August 16, 2016, Long made his debut for the Red Bulls first team, appearing as a starter in a 1–1 draw against Alianza F.C.