Match ends, Southend United 1, Blackpool 2.
Armand Gnanduillet scored the winner as Blackpool beat Southend to move to the fringe of the League One play-off places.
Gnanduillet's 83rd-minute goal handed Terry McPhillips' side a deserved victory after the Shrimpers' Jason Demetriou had cancelled out Oliver Turton's opener.
Southend, who had Michael Turner sent off for violent conduct four minutes from time, came close to taking an early lead when winger Michael Kightly struck the inside of the left post with an audacious effort from the right flank.
But, with 14 minutes on the clock, Blackpool broke the deadlock with Turton firing home Marc Bola's fine left-wing cross from close range.
Seasiders' skipper Jay Spearing struck to the crossbar with a screaming long-range shot at the start of the second half before Southend drew back level, with Demetriou heading home Timothee Dieng's left-wing cross.
However, Blackpool were not to be denied and, seven minutes from time, Gnanduillet headed home Harry Pritchard's left-wing cross.
The Shrimpers' misery was compounded by a late red card shown to Turner following an off-the-ball incident.
Match report supplied by the Press Association.
- 6TurnerBooked at 86mins
- 32HendrieSubstituted forRobinsonat 87'minutes
- 16YearwoodSubstituted forMcCoulskyat 31'minutes
- 7KightlySubstituted forMcLaughlinat 74'minutes
- 25GuySubstituted forPritchardat 60'minutes
- 11DodooSubstituted forNottinghamat 70'minutes
- Nick Kinseley
- Shots on Target
Second Half ends, Southend United 1, Blackpool 2.
Foul by Theo Robinson (Southend United).
Harry Pritchard (Blackpool) wins a free kick in the attacking half.
Attempt missed. Nathan Delfouneso (Blackpool) right footed shot from the centre of the box is too high.
Substitution, Southend United. Theo Robinson replaces Stephen Hendrie.
Michael Turner (Southend United) is shown the red card for violent conduct.
Goal! Southend United 1, Blackpool 2. Armand Gnanduillet (Blackpool) header from the centre of the box to the bottom left corner. Assisted by Harry Pritchard.
Corner, Blackpool. Conceded by Taylor Moore.
Attempt saved. Ben Heneghan (Blackpool) header from the right side of the box is saved in the top centre of the goal.
Foul by Timothee Dieng (Southend United).
Armand Gnanduillet (Blackpool) wins a free kick in the defensive half.
Foul by Harry Bunn (Southend United).
Donervon Daniels (Blackpool) wins a free kick in the attacking half.
Goal! Southend United 1, Blackpool 1. Jason Demetriou (Southend United) header from very close range to the bottom right corner. Assisted by Timothee Dieng.
Attempt missed. Jay Spearing (Blackpool) left footed shot from the centre of the box is close, but misses to the left.
Substitution, Blackpool. Michael Nottingham replaces Joseph Dodoo.
Corner, Southend United. Conceded by Ben Heneghan.
Corner, Southend United. Conceded by Mark Howard.
Attempt saved. Stephen Hendrie (Southend United) left footed shot from outside the box is saved in the top left corner.