Millwall capped off an emotional week with a 2-1 Sky Bet Championship victory over Leeds United at The Den on Saturday afternoon.
Jed Wallace gave Millwall the lead from the penalty spot in the 16th minute after Gaetano Berardi brought down Tom Bradshaw - and was promptly sent off - before Bradshaw doubled The Lions' lead on the stroke of half-time.
Ezgjan Alioski scored for Leeds within 15 seconds of the restart, but The Lions held firm to claim a priceless three points over their rivals.
Millwall's caretaker manager Adam Barrett made two changes from Wednesday night's starting XI at Luton Town, with Shane Ferguson - returning from suspension - and Ben Thompson coming into the line-up at the expense of Matt Smith and Connor Mahoney.
Just two minutes in, backed by a partisan Den crowd, Mahlon Romeo beat his marker and had the first attempt of the afternoon, but Leeds goalkeper Kiko Casilla was equal to it. Stuart Dallas was the first to strike for Leeds, meanwhile, but his shot was harmless and rolled well wide.
Dallas had another unsuccessful pop at Bartosz Bialkowski's goal shortly after, but with 15 minutes on the clock came the game's first major flashpoint, as Berardi brought down Tom Bradshaw inside the box - as the last man, referee James Linington had no choice but to point to the spot and send the Leeds man for an early bath.
Jed Wallace stepped up and smashed the resulting spot-kick high into the goal, giving Casilla no chance, and handing Millwall a 16th-minute lead.
The Lions' tails were up, and after Romeo was again involved on the right-hand side, the ball broke to Thompson, but his effort was saved by Casilla. Half-hearted appeals for a penalty after Jack Harrison tumbled in the box were turned down, before Ryan Leonard had to reluctantly leave the field through injury shortly before the half-hour mark - Shaun Williams his replacement.
Despite their man disadvantage, Leeds were still patiently building in typical fashion, but the next chance went the way of Millwall on 35 minutes - Thompson's curler, however, was wide.
Three minutes from the break, Ferguson's teasing corner-kick was nodded on by substitute Williams, but the ball crept wide of the far post. There was time for one last bit of action in the first-half, though, and it ended in Millwall's second goal of the afternoon. After smart play from Thompson, Ferguson's cross was touched home by Bradshaw for his fourth goal in a Lions shirt, and a first at The Den.
The second-half was just 15 seconds old, however, when Leeds registered on the scoresheet, after a cross into the box was turned home by Alioski from close range.
From there, The Lions took the ascendancy once again, with the impressive Romeo again finding a way forward and turning to shoot inside the area, but his left-footed shot was gathered by Casilla. Goalscorer Jed Wallace then danced into the box and looked to cross, but the ball was cleared behind - just a minute later, the winger's momentum took him inside the box with the ball, but the Leeds stopper was out to claim.
Leeds had a spell of sustained pressure around the hour-mark, but The Lions' defence stood firm to the onslaught. Mateusz Klich tried his luck from distance with 68 minutes on the clock, but the ball sailed over the crossbar.
Millwall were beginning to creep forward as the last 15 minutes got underway, and Romeo's cross found Bradshaw on the edge of the six-yard box, but his poke at goal went wide. Eight minutes from time, Jed Wallace's through-ball looked to find Bradshaw, but after Leeds dallied in possession, the ball agonisingly ran away from the frontman.
The Lions' number seven then tested Casilla with a free-kick, before at the beginning of four minutes of stoppage-time the ball was presented to substitute Jon Dadi Bodvarsson on the edge of the penalty area - his shot was weak, however, and gathered with ease by Casilla.
After stoppage-time was up, referee Linington blew his final whistle to an almighty roar at The Den - a victory of character, desire and true Millwall was complete.
Millwall: Bialkowski, M. Wallace, Hutchinson, Cooper, J. Wallace, Thompson (Bodvarsson 80'), Bradshaw, Ferguson, Romeo, Molumby, Leonard (Williams 28'). Subs not used: Sandford, Smith, Pearce, Mahoney, O'Brien.
Scorer: J. Wallace pen 16', Bradshaw 45'
Booking: Ferguson, Molumby, M. Wallace, Bialkowski
Leeds United: Casilla, Ayling, White, Bamford (Nketiah 62'), Alioski, Dallas, Costa (Douglas 46'), Harrison, Phillips (Roberts 76'), Berardi, Klich. Subs not used: Miazek, Gotts, Davis, Clarke.
Scorer: Alioski 46'
Sent Off: Berardi
Referee: James Linington
Attendance: 16,311 (2,212)