(also 222nd in all appearance". Then in the match against Huddersfield Town on 28 April 2012, Sadler provided assist for Florent Cuvelier, in a 1–1 draw, to ensure that the club will be playing in League One next season. During the season, the club's struggling form in League One led Sadler commenting on the affect. Despite this, Sadler, once again, on to be an ever-present player in the League One season to play every minute of every game for his club and finished runner–up for the club's Player of the Year behind Andy Butler. Despite impression display at the 2011–12 season, Sadler, was offered a new contract with the club and was encouraged to stay at the club by his teammate, Andy Butler. Crawley Town On 8 June 2012, Sadler joined newly promoted League One side Crawley Town on a free transfer after turning down a new two–year contract with the club. Upon joining the club, Sadler cited Manager Sean O'Driscoll's winning mentality as the reason he joined Crawley Town. Sadler made his debut on 14 August, starting in a League Cup match as a left back against Championship side Millwall which ended 2–2, with Crawley winning 4–1 on penalties. Four days later, on 18 August 2012, Sadler made his league debut for Crawley Town, in the opening game of the season, in a 3–0 win over Scunthorpe United. Sadler then scored his first goal for the club on 5 March 2013, in a 1–1 draw against Carlisle United. In his first season at Crawley Town, Sadler went on to be an ever-present player in the League One season to play every minute of every game for his club, as he helped the club finish tenth place. In the 2013–14 season, Sadler continued to regain his place in the first team, under the new management of Richie Barker. Sadler then score his first Crawley Town goal of the season on 17 August 2013, in a 2–1 loss against Rotherham United. Then on 21 September 2013, Sadler then provided assist for Emile Sinclair, in a 1–1 draw against Colchester United. Sadler made his 200th consecutive league appearance on 12 April 2014 against MK Dons. Like his first season at Crawley, Sadler was, once again, to be an ever-present player in the League One season to play every minute of every game for his club, as he helped the club finish fourteenth