Millwall boss Gary Rowett admits that his side were 'given a lesson' after they were beaten 3-2 by Sky Bet Championship leaders Leeds.
The Whites were 2-0 down at half-time and looked shell-shocked - but they came out roaring after the interval and scored three goals inside 18 minutes to go back to the top of the standings.
Dejected Millwall boss Gary Rowett said: "I'm disappointed, but overall we've been given a lesson. They (Leeds) were thoroughly deserved winners.
"Ten days without a game has probably benefitted Leeds which you saw with the running and energy.
"We knew this was a tough place to come. To get in at half-time 2-0 up, we didn't perform well enough after that.
"We conceded a poor goal just after half-time and then they get a deflection for the second and their third, we stand off the crosser.
"We created some opportunities in the game but we didn't pass the ball enough today."
The visitors raced into the lead with barely four minutes on the clock. A corner was whipped in and Shaun Hutchinson rose unmarked to plant a header past home stopper Kiko Casilla.
Bartosz Bialkowski in the Millwall goal was keeping Leeds at bay and that proved vital as Millwall notched a second midway through the half.
The visitors were awarded a penalty after Jon Dadi Bodvarsson was clumsily felled in the box by Gjanni Alioski. Jed Wallace duly stepped up and smashed the spot-kick home to double the Lions' advantage.
Leeds looked well off the boil but produced a riveting second-half showing to turn the game on its head. Bialkowski made a superb point-blank save to keep out Jack Harrison's effort from a corner but Patrick Bamford was there to easily tap in from a yard out to halve the deficit.
Pablo Hernandez's deflected shot left Bialkowski helpless and the turnaround was complete on 66 minutes when Bamford nodded in unmarked from Luke Ayling's delightful centre.
Helder Costa struck the crossbar whilst Mateusz Klich somehow blazed over from just a few yards but Leeds held on to secure a potentially huge three points.
