Dennis played for football league clubs Plymouth Argyle, Exeter City, Chesterfield, Colchester United, Lincoln City and made more than 100 appearances for Cambridge United in a career that spanned 17 years.
Dennis thi đấu cho các câu lạc bộ Football League như Plymouth Argyle, Exeter City, Chesterfield, Colchester United, Lincoln City và và có hơn 100 lần ra sân cho Cambridge United in a career that spanned 17 years.