Stephen Foster's injury-time strike had implications at both ends of the npower Championship table as relegation strugglers Barnsley grabbed a dramatic 1-1 draw at leaders Cardiff.
The home side ended the night six points clear of second-placed Hull but would have expected to win, especially after finally taking the lead just before the hour mark. Defender Ben Turner was the unlikely scorer, guiding Kim Bo-kyung's corner home.
But the Bluebirds were not able to add to that and paid the price in the fifth minute of added time when Foster's deflected leveller ensured a draw. In doing so, he put his side two points clear of the drop zone.
Barnsley's South Yorkshire rivals Sheffield Wednesday went one better, stealing a 2-1 victory moments from the full-time whistle at Millwall.
Nadjim Abdou gave the home side the lead after only two minutes but Wednesday fought back and drew level through Miguel Angel Llera five minutes before half-time.
That looked to be enough for the night until substitute Chris Maguire struck in injury time.
Wednesday leapt into 14th place as a result, six points clear of the bottom three, with Millwall one point worse off with a game in hand.