Leeds United are now unbeaten in 16 league matches at Elland Road
Leeds United moved back to the top of the Championship after overcoming Millwall 2-0 at Elland Road.
Sheffield United had leapfrogged Daniel Farke's men at the summit with Tuesday's 1-1 home draw against Bristol City, having previously been equal on points with their Yorkshire rivals.
But Leeds' first win in March - having dropped points against West Bromwich Albion before their 17-match unbeaten league run was ended by Portsmouth on Sunday - allowed them to re-establish a two-point lead at the top, and a four-point cushion to third-placed Burnley in the battle for automatic promotion.
The hosts took a fortuitous third-minute lead when Manor Solomon's cut-back was deflected off the knee of Lions defender Jake Cooper and past goalkeeper Lukas Jensen for an own goal.
Solomon hit the crossbar with a thunderous second-half effort, before Ao Tanaka completed the victory with a first-time finish from the edge of the area.
Just three days after their unbeaten league run ended at Fratton Park, Leeds bounced back to make it 16 Championship games without defeat at Elland Road with an assured performance against a Lions side that had beaten them twice this season.
While Millwall's last trip to Leeds ended with a 2-0 upset to knock the second-tier high-fliers out of the FA Cup in February, their hopes of repeating the feat and become the first side to beat Leeds at home in the Championship since September got off to disastrous start.
Solomon met a pass from Joe Rothwell to burst into the box, and his low cross pinballed off Cooper and Jensen and into the net.
Brenden Aaronson went on to force Jensen into a save at his near post, and Tanaka sent a long-range effort just wide before the half-hour mark.
Joel Piroe thought he had added a second goal soon after, but his fierce finish after linking up with Aaronson was ruled out for an offside call on the American before he came up with the assist.
The first half ended with Cooper squandering a huge chance to make amends for his own goal, thumping a free header wide from a corner.
It was the best chance the mid-table visitors were afforded, as a more industrious Leeds emerged after the break and piled forward in search of further goals.
Millwall, however, worked tirelessly in defence to limit the hosts, with Solomon skimming a shot off the bar, before Tanaka made it 2-0 with his powerful 85th-minute finish with what was only Leeds' second shot on target.
As for Millwall, they failed to get any on target as a heavily deflected cross that tested the vigilance of Illan Meslier at his near post constituted their most dangerous moment of the second half.
'Excellent win and performance' - reaction
Leeds United boss Daniel Farke told BBC Radio Leeds:
"It was an excellent win for us tonight in a pretty busy period. Also, it was an excellent performance.
"We were quite respectful today because we haven't lost many games, but it is so important for us that when there is a little set-back that we answer straight away.
"That is what we have always done during the season so far. I love it.
"But also the game after a loss can also be difficult because you can have a great run of form, with many wins or 17 games unbeaten, but then you lose one game and that does something with the confidence and the rhythm, and you have to fight your way back to get momentum back on your side.
"That is what we did today against an excellent Millwall side that always shows resilience, that is competitive, and tries to press and go for it."
Millwall boss Alex Neil told BBC Radio London:
"The nature of the first goal for us is really frustrating because it is unfortunate. From there, to be fair to the lads, I thought they brushed it off.
"First half, I thought we were pretty good, we moved the ball well and got into good areas, but didn't create as many opportunities as I would have hoped.
"Second half, they started bright and, at that stage, they had a dominant spell and we tried to stay in the game. We had a couple of little moments without really getting anywhere and obviously the second goal takes it away from us.
"We didn't deserve to take anything away from the game. Leeds were the better side. But I know a lot of teams have come here and conceded early and roll over, and it becomes a real tough evening, but our lads made it difficult with how hard they worked."
