place. At the end of the 2013–14 season, with his contract was about to run out, Sadler was among four players to be offered a new contract. However, due to weeks of delays, the club decided to withdraw the contract offer on Sadler and was released by the club in June. After leaving the club, Sadler was linked with a move to clubs around England and Scotland. Rotherham United Sadler joined newly promoted Championship side Rotherham United on a free transfer from Crawley Town on 17 June 2014. Upon joining the club, Sadler said he cannot wait to play in the Championship with the Rotherham United side. After appearing five times in the pre–season friendly matches, it wasn't until on 26 August 2014 for Sadler made his Rotherham United debut in the second round of the League Cup, which saw them lost 1–0 against Swansea City. However, this turns out to be his only appearance in the League Cup, before returning to Crawley in September on loan. He was linked with a loan move to Notts County and Crewe Alexandra. Sadler then had a run in the first team, which lead to extending his loan spell for another month. After extending his loan spell, Sadler continued to remain in the first team before returning to his parent club on 13 November 2015. When his loan expired, he returned to Rotherham, and made no further first-team appearances until joining Oldham Athletic on a month's loan in March 2015. Upon joining the club, Sadler was brought by Oldham Athletic as a replacement for Joseph Mills, who suffered a calf–injury. Sadler made his Oldham Athletic debut on 14 March 2015, in a 3–1 loss against Barnsley. Sadler then provided assist for Conor Wilkinson on 21 March 2015, to score the only goal in the game in a 1–0 win over Crewe Alexandra, to end the club's three match losing streak. After making eight appearances for the club, Sadler returned to his parent club on 13 April 2015. At the end of the 2014–15 season, Sadler was released by the club. Return to Shrewsbury Following his release from Rotherham, Sadler signed for former loan club Shrewsbury Town in League One, on a two-year contract in May 2015. Sadler's first game after signing for the club on a permanent basis came in the opening game of the season, in a 2–1 loss against Millwall. A