Match ends, Southend United 1, MK Dons 2.
Southend United's push for the League One play-offs was dented by a defeat against MK Dons at Roots Hall.
The seventh-placed Shrimpers had been hoping to move up into the top six with a win.
But two Dons goals in nine minutes at the start of the second half saw Phil Brown's side suffer a costly setback.
MK Dons came closest to scoring in the first 45 minutes when Harvey Barnes' effort was cleared off the goal-line by a sliding Jason Demetriou.
However, the visitors broke the deadlock in the 53rd minute with centre-back Joe Walsh heading home a right-wing corner from Ben Reeves.
Southend almost netted an immediate equaliser with Anthony Wordsworth curling a 25 yard free-kick against the outside of the left post.
But Dons doubled their lead in the 62nd minute with former Shrimpers loanee Reeves firing home after Christian Walton had parried a shot from Kieran Agard.
Walton then did well to deny both Agard and Barnes before Southend rallied late on with Anton Ferdinand hitting the post and Simon Cox netting an injury-time penalty after Marc-Antoine Fortune had been brought down by George Baldock.
Match report supplied by the Press Association.
- 12AtkinsonSubstituted forRobinsonat 58'minutesBooked at 84mins
- 4WordsworthBooked at 90mins
- 11McLaughlinSubstituted forMcGlashanat 58'minutes
- 50RangerSubstituted forFortunéat 75'minutes
- 21BrittainSubstituted forBaldockat 85'minutes
- 10ReevesBooked at 35minsSubstituted forTilneyat 90+3'minutes
- 14AgardSubstituted forMuirheadat 73'minutes
- Andy Haines
- Shots on Target
Second Half ends, Southend United 1, MK Dons 2.
Foul by Marc-Antoine Fortuné (Southend United).
Dean Lewington (MK Dons) wins a free kick on the right wing.
Goal! Southend United 1, MK Dons 2. Simon Cox (Southend United) converts the penalty with a right footed shot to the bottom left corner.
Penalty Southend United. Marc-Antoine Fortuné draws a foul in the penalty area.
Penalty conceded by George Baldock (MK Dons) after a foul in the penalty area.
Anthony Wordsworth (Southend United) is shown the yellow card.
Foul by Anton Ferdinand (Southend United).
Darren Potter (MK Dons) wins a free kick in the attacking half.
Substitution, MK Dons. Ben Tilney replaces Ben Reeves.
Attempt missed. Harvey Barnes (MK Dons) right footed shot from the right side of the box misses to the left.
Attempt missed. Simon Cox (Southend United) right footed shot from outside the box is close, but misses to the left.
Corner, MK Dons. Conceded by Jason Demetriou.
Corner, Southend United. Conceded by Joe Walsh.
Substitution, MK Dons. George Baldock replaces Callum Brittain.
Theo Robinson (Southend United) is shown the yellow card.
Delay in match Ed Upson (MK Dons) because of an injury.
Attempt blocked. Ben Reeves (MK Dons) right footed shot from outside the box is blocked.
Foul by Adam Thompson (Southend United).