in a game against Northampton Town, for a foul on Seth Nana Twumasi, a game that Stevenage went on to lose 2–0. Stevenage appealed against the sending off, but the appeal was subsequently rejected. This ultimately meant that Foster had played his last game of the 2010–11 season, serving a four-match suspension that ruled him out of Stevenage's end of season 3–3 draw with Bury, as well as the club's subsequent play-off campaign. Foster played 23 times for Stevenage in his only season with the club, scoring once, and the team went on to win promotion into League One via the play-offs. Rotherham United Foster signed for League Two club Rotherham United on 20 June 2011. He signed a one-year contract with the club, with an option of a second year. Foster made his debut for the club in a 3–0 home victory against Gillingham on 27 August 2011, coming on as an 84th-minute substitute with Rotherham already holding a three-goal advantage. After making no further first-team appearances the following month, Foster was made available for loan by manager Andy Scott. Scott stated Foster lacked both desire and fitness since signing for the club. However, no loan transfer materialised, and Foster made his second appearance for Rotherham in a 3–3 away draw at Morecambe on 25 October 2011. He subsequently made his first start in a 2–0 home victory over Aldershot Town on 5 November 2011, Rotherham's first win in 10 matches. In December 2011, Rotherham manager Andy Scott revealed that Foster would miss the rest of the 2011–12 season as a result of a cruciate ligament damage sustained in a match against Hereford United on 10 December 2011. He was released by Rotherham in May 2012, having made six appearances for the club. Matlock Town Ahead of the 2012–13 season, Foster went on trial with League One club Sheffield United. He played in the club's opening pre-season fixture, coming on as a 62nd-minute substitute in a 1–1 draw with Ilkeston. No move materialised, and Foster signed non-contract terms with Northern Premier League Premier Division team Matlock Town to build match fitness ahead of a return to the professional game. He made his Matlock debut just a day after signing, on 18 August 2012, playing the whole match as Matlock opened the season with a 5–0 home defeat to Nantwich Town. Foster made ten appearances in all competitions for the