Swansea City replaced Leeds United at the top of the Championship after Wayne Routledge's late goal secured a sensational victory at Elland Road.
Routledge struck in the 90th minute to maintain Swansea's unbeaten start under Steve Cooper and inflict Leeds' first defeat of the season.
Marcelo Bielsa's side dominated but their finishing let them down.
The Swans are now two points clear at the top of the table, while Leeds drop down to third, below Charlton.
Both sides had won four and drawn the other of their five Championship games ahead of the Elland Road meeting.
Leeds were top at the start of the day thanks to a marginally better goal difference than second-placed Swansea - and they started well.
Mike van der Hoorn almost turned a stray Stuart Dallas cross into his own net while Gjanni Alioski and Patrick Bamford had two chances apiece.
Swansea's response came from a free-kick after Jack Harrison was fouled on the edge of the area but Matt Grimes curled his effort into the side netting.
Leeds nearly went ahead on the stroke of half-time when returning skipper Liam Cooper nodded a corner against the frame of the goal before putting the rebound over.
The hosts started the second period as strongly as they had finished the first, with Bamford slicing an effort wide and former Swan Pablo Hernandez being denied by Freddie Woodman.
Substitute Eddie Nketiah latched on to a through ball only to fire over the bar.
Swansea felt they should have been awarded a penalty after Sam Surridge went down, but referee Darren Bond was unmoved.
Nketiah almost scored late on, heading wide from Dallas' cross when under pressure from Woodman.
It was to prove costly when Leeds failed to clear a corner allowing Routledge to fire home a low effort.