What a game of football.
It's one of those that will forever live in the memory of everyone that was there, and one that we probably won't see again for a long time to come.
Two hat-tricks, both on different sides and one from a 17-year-old who has the world at his feet, this game had everything and it's somewhat difficult to put it into words.
Nevertheless, here's what we took from Fulham's mental game in Yorkshire.
Never in all my life...
I've never seen anything like that before, and I doubt anyone at the famous old ground had either.
It looked like it would be another defeat after Fulham went 1-0 down after they were carved open for Leon Clarke to open the scoring, but then things got a bit crazy.
If you blinked you would've missed Slavisa Jokanovic's team's two goals - Sheyi Ojo capitalised on a mistake before Ryan Sessegnon smashed home his first about a minute later.
All defence went out the window after the game, as did a sane game of football, and I really don't think I'll see something like that in a long time.
Jokanovic was animated more than I've ever seen him on the sideline, but after the game he cut a cool figure and didn't look like he'd just seen his team concede four goals at Sheffield United and still come away with a win.
It was one of those where you had to be there.
Fulham's attacking pace was frightening
United couldn't cope with Fulham's pace as they broke, and considering they've struggled in the final third in recent weeks, they looked frightening going forward.
There was no answer for Ojo, Sessegnon and Floyd Ayite on the break, and that was evident as Sheffield United looked likely to concede every time Fulham charged forward.
And everything they touched seem to turn to gold on Tuesday.
Ojo bagged two goals, Sessegnon got his hat-trick and Ayite looked like the skillful player we saw last season.
Aboubakar Kamara looked good out on the right when he was brought on and I feel his pace is better utilised out there - being that wide allows him to knock the ball into more space and use his speed to attack the gaps behind full backs, rather than as the main striker and get crowded out.
For a team that had looked like they'd forgotten how to score, last night was a welcome return in the attacking stakes.
Ryan Sessegnon - best youngster in the world?
Without wanting to put too much pressure on the 17-year-old, it's fair to say he's one of the best young players in world football right now.
50 senior appearances and a hat-trick to celebrate it, Sessegnon just continues to get better and better.
He was a joy to watch last night with three very good finishes, something you would expect a 26-year-old striker in their prime to do, yet he's doing it at just 17.
I think we all know he won't be at Fulham forever, but it's an absolute privilege to watch someone with the talent Sessegnon has week-in, week-out.
For all the talk about Phil Foden at Man City being the best 17-year-old in the world, I think Fulham's own Sessegnon will have a thing or two to say about it in the next few years.
Is this the turning point?
Fulham's season desperately needed a catalyst and was in the danger of petering out after six games without a win.
Tuesday night's victory could well be the kickstart the season needed, a win against one of the top sides in the division is big enough, but to score five and see out the win is an even bigger confidence boost.
Last season, Fulham were extremely dangerous on the attack and looked like they would score at every opportunity, and we haven't seen that this season just yet.
You look at the run of games the side has from here and it presents the opportunity for a run, and who knows where the side could be come the end of December?