Sheffield Wednesday crashed to a 2-1 Hillsborough defeat against promotion rivals Brighton.
It was the visitors who enjoyed the better of the first half, taking the lead when Sam Baldock raced away to chip over a stranded Kewiren Weswood.
Glenn Murray thought his volley had made it 2-0 but he was flagged offside.
The Owls did improve before half-time, Adam Reach forced a fine save from David Stockdale before Jack Hunt’s follow-up was deflected wide.
Fernando Forestieri’s header drifted wide, but the Owls had once again been punished for a poor opening 45 minutes.
Goalkeeper Westwood was replaced at half-time by rookie Cameron Dawson after picking up an injury in first half.
Wednesday were much better after the break, Steven Fletcher heading over while Tome Lees saw his header cleared off the line.
But the Owls were punished once again when Anthony Knockaert gave Dawson no chance with a close-range finish.
Stockdale produced a fine save to deny Ross Wallace’s long-range effort, Lees heading wide the resulting corner.
But the fire had gone out of the game as the clock ticked down.
Fletcher’s shot was deflected wide, after a good run from Reach - playing at left-back after Daniel Pudil was substituted - before the former Middlesbrough blasted over from six yards with the goal at his mercy.
Gary Hooper fired in a stoppage-time goal but it was little consolation for the home supporters.
Sheffield Wednesday head coach Carlos Carvalhal was frustrated with the result.
He said: “I will start with this because I don’t like to talk about it too much, try to see the image of the possible penalty to us and the two red cards. Because, to me, I saw the images and it’s very clear.
“It was a game that was very balanced, like we expected. It was a tactical game, especially in the first half. We had a few chances and Brighton had one or two also, so it was very balanced.
“In the second half, I thought we played better, more offensive and we pressed more. In the moments we pressed more, we created more clear chances and they scored in their solitary moment, the second goal.
“The second goal was crucial but after we never gave up. We didn’t score at the correct time, we just scored in the last minute. I think, maybe, if we score before we could’ve achieved points in this game.”
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