Leeds missed the chance to return to the top of the Championship as they conceded in the sixth minute of added time to draw 2-2 at home to Swansea.
Leeds made the ideal start as they looked to respond to Sheffield United's Friday night win over Coventry, with Brenden Aaronson bundling the ball home inside a minute.
Swansea were handed a chance to level from the penalty spot in the 14th minute, only for Illan Meslier to turn Josh Tymon's penalty behind.
But the goalkeeper went from hero to villain in the 64th minute as he dropped a corner, allowing Harry Darling to level.
Substitute Willy Gnonto looked to have won it for Leeds with a close-range effort in the 86th minute, moments after coming on, but Zan Vipotnik smashed home a last-gasp leveller.
The draw left Leeds two points behind the Blades and level on points with third-placed Burnley, who claimed a 1-0 win at home to play-off chasing Bristol City thanks to Zian Flemming's fine free-kick.
Sixth-placed West Brom were unable to take advantage of the defeats for Coventry and Bristol City as they were sunk by Josh Sargent's stoppage-time goal in a 1-0 defeat at Norwich.
Instead Middlesbrough closed to within goal difference of the top six as they came from behind to win 2-1 at home to Oxford.
Second-half goals from Kelechi Iheanacho and Neto Borges cancelled out Michal Helik's opener.
Sunderland, well clear in fourth, won 1-0 at home to Millwall thanks to Trai Hume's 20th-minute goal. Luke O'Nien missed a penalty for the Black Cats.
At the other end of the table Stoke boosted their survival hopes with a 3-1 win at home to QPR, Bae Jun-ho, Junior Tchamadeu and Million Manhoef on target. Yang Min-hyeok pulled one back for Rangers.
Victory took the Potters four points above the drop zone, level with Oxford.
Second-bottom Luton claimed a crucial 1-0 win at fellow strugglers Hull thanks to Alfie Jones' bizarre own goal at the start of the second half.
A clearance from Lewie Coyle hit Jones in the face, with the ball flying past goalkeeper Ivor Pandur.
The win took Luton to within two points of safety and four ahead of bottom side Plymouth, who held Watford to a goalless draw.
Hull are three points above the bottom three, one points clear of Cardiff, who drew 1-1 with Sheffield Wednesday. Isaak Davies put Cardiff in front, but Michael Ihiekwe levelled.
Portsmouth beat Blackburn 1-0 thanks to Jacob Murphy's goal.
