This game almost produced one of the goals of the decade. It's just over twelve years since the last one, and just about the only chance I'll get to compare Brenden Aaronson, favourably, to Rudy Austin.
According to UEFA live television coverage was being requested by seventeen countries. Leeds were ready to turn the 4-0 scoreline from six weeks ago into motivation for sweeping the Blaugrana out of Europe.
Whyte's skills had been polished in the States, and he started his Leeds career by dribbling past two Scarborough players and shimmying around the goalie to score. More important, though, was his impenetrable consistency alongside Chris Fairclough.
Not taking three points from this relegation rival means those three points will have to be taken from better teams later. So Leeds need to become an even better team, soon, if they can.
O'Leary's babies had not, yet, dug into and ground out one of their Champions League matches. Travelling, working and getting the result were signs of maturity as long as you remember that growing up is boring.
The acts of persuasion that Howard Wilkinson and Bill Fotherby used to tempt Chris Fairclough to Second Division Leeds United must rank among the greatest lobbying feats in football history.
Illan Meslier's 9,600 minutes in the Premier League alone are 600 more minutes than Perri has played in his entire career. The simple truism comes to goalkeepers before others, about doing much too much, much too young, and Meslier has grown up in much too bright a spotlight.
The Premier League fad might be the ideal tactic for a sweaty, exhausting, stop-start tournament of drinks breaks, storm delays and keeping the ball out of play so everyone can rest.
Massimo Cellino wanted the credit, and Leeds fans wanted a good local left-back. But Charlie Taylor wanted the Premier League.
It's important that Leeds United outplayed Spurs in every department of this match and marched off the pitch, chests out and heads high, flicking Vs at the referee and feeling hard done by.