 He scored 23 goals in 76 league and cup games for the "Stags", and helped the club win promotion in 1985–86 and become established in the league above in 1986–87.He then departed Field Mill and switched to Doncaster Rovers, who finished bottom of the Third Division in 1987–88 under Dave Cusack and Dave Mackay.Chamberlain then left Belle Vue and dropped out of the Football League to play for Stafford Rangers, Worksop Town, Shepshed Charterhouse, Matlock Town, Leek Town and Rocester.