Sheffield Wednesday boosted their battle against the drop with a controversial win away at Millwall.
Frank Simek scored the only goal, rifling past Andy Marshall just moments after Millwall thought they had scored direct from a Tony Craig corner.
Lions' players celebrated with Craig, but the referee blew for a free-kick and Wednesday raced upfield to score.
Owls' Lee Bullen replaced David Lucas in goal at half-time and saved David Livermore's free-kick as they held on.
Millwall manager David Tuttle:
"The players thought they had scored and went to celebrate but the referee's given the decision.
"We didn't react quickly enough and they have scored.
"We've got to blame ourselves for conceding. We are all disappointed but we are not going to blame anyone for what has happened."
Sheff Wed manager Paul Sturrock:
"I think that is about the eighth position Bullen has played in this season.
"Everyone else get excited when someone else goes in goal but often they are rarely tested.
"Now we are down to the bare bones again so I may have to have a word with my chairman."
Millwall: Marshall, Lawrence, Robinson, Whitbread, Craig, Dunne (May 70), Elliott, Morris (Dyer 45), Livermore, Powel, Williams (Braniff 89).
Subs Not Used: Doyle, Ifil.
Sheff Wed: Lucas (Diallo 44), Simek, Bullen, Wood, Gilbert, Brunt, Whelan, Folly, O'Brien, Burton, Corr (Tudgay 82).
Subs Not Used: Best, Partridge, MacLean. Booked: Folly, Wood, Bullen, Whelan.
Goals: Simek 63.
Ref: S Tanner (Somerset).