Wigan Athletic 0-2 Blackpool
Wigan Athletic missed a chance to secure their Championship play-off place as they suffered a shock home loss to Blackpool at the DW Stadium.
The hosts missed a first-half penalty as Martyn Waghorn's powerful spot-kick was blocked by Matt Gilks after Tony McMahon had fouled Shaun Maloney.
But Andy Keogh's header from Isaiah Osbourne's cross put Blackpool ahead.
Keogh then set up Stephen Dobbie, whose low shot sealed the win to take his side out of the bottom three.
It was only Blackpool's third victory in 28 league games and came at a vital time as they had begun the day in the relegation zone, facing a drop to the third tier of English football only three seasons after being in the Premier League.
This win, their first away from home since 2 November, does not ensure their safety but leaves them in 18th position and three points above the drop zone with one week of the season left.
For Wigan, who drop from fifth to sixth in the table, they will see this as a glorious chance missed in a game they dominated before Blackpool took the lead on 60 minutes.
However, the Latics will still secure a play-off place if they win away at Birmingham on Tuesday with Uwe Rosler's side having one game in hand on the sides around them.
Despite being backed by a large and vocal away support, the visitors struggled to enforce themselves on the game in the first-half.
After James Perch had headed at Gilks and Jordi Gomez had shot wastefully wide from 20 yards, Wigan were awarded a penalty, but Gilks's superb one-handed save, diving to his left, denied Waghorn and kept the scores level.
Blackpool failed to test Ali Al-Habsi in the first-half and the visitors only half-chance came when Neal Bishop failed to connect with Chris Basham's dangerous-looking ball into the box.
But the home goalkeeper was picking the ball out of his net on the hour mark when Keogh converted from Osbourne's floated cross.
Barry Ferguson's side doubled their lead 10 minutes later when the impressive Keogh pulled the ball back and Dobbie steered his shot into the net.
Blackpool still need a positive result from their last game of the season, at home against Charlton next Saturday, but their hopes of survival are much stronger now than at the start of the weekend.
Wigan Athletic manager Uwe Rosler:
"When I came in at the beginning of December we weren't in a position to be anywhere near thinking about the play-offs but now with two games to go it is still in our own hands.
"If you let the ball bounce as we did for the first goal then you have a problem and that goal was decisive. With the way Blackpool had set up we knew it would be difficult to score any goals as they had everyone behind the ball.
"We move on and no-one is panicking. We have two games more to get those three points."
Blackpool assistant manager Malky Thomson:
"It's a massive win for us. The group has got stronger and stronger and it was a great day for the fans.
"It was important that we got a result that would give us a chance for next week and make sure it was still in our own hands.
"The penalty save gave us a boost and in the second half we scored two goals and totally dominated. We have spoken in the group about being positive and we are not looking negatively at the season at points we may or may not have picked up.
"We went out with a firm belief that we would win the game. We want to try and build something and get ourselves in a position to get further up the league."