 He was a regular starter for Sounders 2 playing as a midfielder before being converted to centerback, appearing in 28 matches and recording one goal and two assists.Long went on trial with New York Red Bulls during the 2016 pre-season, and on March 10, 2016 signed with affiliate club New York Red Bulls II.Long made his official debut for the club appearing as a starter in a 2–2 draw against Toronto FC II.