Whatever happens to Sheffield Wednesday in the remainder of this season, that is an afternoon that will be spoken about for a long time.
The first half was incredible, possibly their best of the season. The second was possibly their worst.
Here are the player ratings from a sickening and damaging 3-2 defeat as the Owls rolled over at Kenilworth Road.
1. Izzy Brown came back in..
..but who were the better performers? Let's take a look at the ratings.
Photo: Julian Finney
2. Joe Wildsmith - 5
Had little to do and was not at fault for the goals. Looked as confused as everybody else as Luton fired back into it. End of the day, he conceded three.
Photo: Robbie Jay Barratt - AMA
3. Osaze Urhoghide - 4
Good going forward, ambitious and comfortable on the ball, played a vital part in Windass' second. Looked bewildered in the second half.
Photo: Clive Rose
4. Tom Lees - 5
Like so many, excellent in the first half. Made interventions throughout but couldn't stem the tide.
Photo: Alex Pantling