 He scored five goals in 45 games in 2008–09.He scored against Championship club West Bromwich Albion in the 4–3 defeat in the League Cup Second Round on 26 August 2009; though a groin injury meant that he was restricted to just seventeen appearances in 2009–10, and he did not feature in the play-off Final defeat to Dagenham & Redbridge.Released by Rotherham, Cummins signed a one-year deal with Neil Woods' Grimsby Town in June 2010.