 He would cap his first professional senior with two further starts in a draw and a defeat against Cardiff City and Leicester City.After appearing for the team in the pre-season summer 2012 schedule, Thompson found himself on the fringes of the squad for Warnock's first full season in charge as fellow young prospect Sam Byram leapfrogged him in the pecking order for the right sided position.Nevertheless, he made his first appearance of the 2012–13 season as a substitute in a League Cup match against Oxford United on 28 August as Leeds ran out 3–0 winners.