Midson makes Shrimpers pay
Southend United's promotion hopes were dealt a huge blow with a shock 1-0 defeat against AFC Wimbledon at Roots Hall.
Former Shrimpers loanee Jack Midson bagged the only goal of the game from the penalty spot midway through the second half.
And that ended a run of three successive victories for Southend.
In a largely uneventful game, Wimbledon came closest to scoring in the first half when Kwesi Appiah saw his close-range shot superbly saved by Shrimpers goalkeeper Daniel Bentley.
However, Bentley was beaten in the 58th minute when Midson's weak penalty squeezed under the goalkeeper's body and rolled into the back of the net.
The spot-kick had been given after John Egan had brought down Appiah inside the penalty area.
But Egan soon almost made amends with a well-struck 30-yard shot which visiting goalkeeper Ross Worner did well to tip around the right post.
Barry Corr then also headed a half chance wide of the opposite upright but Southend rarely threatened.