In 2009–10 season, Sadler remained on the sidelined. In October 2009, Sadler went on trial at Huddersfield Town Sadler played for the club's reserve on 14 October 2009 against Grimsby Town's reserve, where he provided assist on one of the goal, with a 3–1 win. However, Huddersfield Town decided against signing Sadler. After this, Sadler appeared seven times as an unused substitute. Sadler then joined Stockport County on loan in January 2010 and remained at Edgeley Park until the end of the League One season. His debut for the club took place on 30 January against Southampton. Sadler became a first team regular for the club, where he made twenty appearances. However, despite Sadler's best effort, the club were later relegated to League Two.