Leeds United moved top of the Championship as two goals in the last 20 minutes saw them edge past Hull City for a seventh straight league victory.
Marcelo Bielsa's side were matched by the Tigers in a first half without a shot on target, but the hosts turned the screw in the last half-hour.
After Helder Costa's goal was ruled out for offside Leeds went ahead in fortunate style when the Portugal winger's cross was diverted into his own net by Jordy de Wijs.
Then, after goalkeeper Kiko Casilla stopped Tom Eaves heading Hull level, the home side countered and scored a second - sub Ezgjan Alioski finishing from a tight angle after Patrick Bamford hit the post.
The points saw Leeds go a point clear of West Bromwich Albion, who will return to the summit if they win at Wigan on Wednesday, and 11 points above third-placed Fulham, while Grant McCann's Hull drop into the bottom half.
Both sides perked up after a fairly uninspiring first 45 minutes at Elland Road, towering striker Eaves denied by Casilla before Costa's effort was ruled out for offside against Jack Harrison, whose low ball was swept in.
Minutes after blocking a powerful Harrison strike, Belgian defender De Wijs once again threw his body in the way of a Leeds ball into the box but unwittingly slid the ball past Hull keeper George Long.
The Whites had their Spanish keeper Casilla to thank for their second - his reaction save from a Hull corner launching a breakaway which saw Alioski sweep in a rebound.
Leeds are now unbeaten in 10 Championship matches, conceding just three times in that time, with this their fourth consecutive clean sheet.
Leeds head coach Marcelo Bielsa:
"Hull City were not the best team to come here this season at the beginning of the game, but in the end this has been a very important win for us.
"It was a game of two different halves. In the first half we were good, but we faced an opponent with a very attractive style of play.
"We couldn't stop Hull's chances, but we kept on the offensive. We risked the result in the second half, but once we had scored the second goal, we then managed the game very well."
"We had a lot of crosses and chances, and the conclusion is that we deserved the victory.
Hull City boss Grant McCann told BBC Radio Humberside:
"I thought it was harsh and cruel but I'm not interested in hard luck stories.
"We thought we had scored and then 20 seconds later it was in our net at the other end.
"I was very pleased with the performance. We wanted to play through their press and I thought we did that. A couple of times we took one touch too many. We're usually ruthless and today we weren't.
"We're getting closer to where I want us to be."