Southend United 0-1 Chesterfield

Lee Novak has scored 14 goals in 29 appearances for Chesterfield this season

Lee Novak scored a last-minute winner as Chesterfield beat League One play-off chasers Southend to move six points clear of the relegation zone.

David Worrall almost put Southend ahead, nodding against the post before keeper Tommy Lee saved his rebound.

Chesterfield's Ollie Banks and the hosts' Tyrone Barnett both threatened, while Southend had a penalty turned down when Sam Hird felled David Mooney.

With time running out, Banks teed up Novak to win it with a neat finish.