Match ends, Southend United 0, Chesterfield 1.
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.
- 3CokerBooked at 64mins
- 12AtkinsonSubstituted forMcQueenat 66'minutes
- 7WorrallSubstituted forHuntat 29'minutes
- 19BarnettSubstituted forMooneyat 80'minutes
- 24BanksBooked at 59mins
- 17DimaioBooked at 88mins
- 34JohnSubstituted forO'Sheaat 83'minutes
- Darren Drysdale
- Shots on Target
Second Half ends, Southend United 0, Chesterfield 1.
Corner, Southend United. Conceded by Gboly Ariyibi.
Attempt missed. Jay O'Shea (Chesterfield) right footed shot from more than 40 yards on the left wing is close, but misses to the left.
John White (Southend United) wins a free kick on the right wing.
Foul by Jay O'Shea (Chesterfield).
Goal! Southend United 0, Chesterfield 1. Lee Novak (Chesterfield) right footed shot from the centre of the box to the bottom left corner. Assisted by Oliver Banks.
Connor Dimaio (Chesterfield) is shown the yellow card for a bad foul.
Jack Payne (Southend United) wins a free kick in the attacking half.
Foul by Connor Dimaio (Chesterfield).
Corner, Chesterfield. Conceded by Anthony Wordsworth.
Substitution, Chesterfield. Jay O'Shea replaces Declan John.
Corner, Chesterfield. Conceded by Ben Coker.
David Mooney (Southend United) wins a free kick in the attacking half.
Foul by Gary Liddle (Chesterfield).
Substitution, Southend United. David Mooney replaces Tyrone Barnett.
Foul by Gary Deegan (Southend United).
Gboly Ariyibi (Chesterfield) wins a free kick in the attacking half.
Tyrone Barnett (Southend United) wins a free kick in the attacking half.
Foul by Sam Hird (Chesterfield).