Leicester's first home Champions League fixture is big news, absolutely. But there's no denying the fixture of the evening.
It's Borussia Dortmund v Real Madrid that we're interested in - and only one of those two can lay claim to being the form team in Europe.
Dortmund have scored 20 goals in their last four games.
Which means it's probably a bad time for Real Madrid to visit. They've only kept one clean sheet in their last six games...
Furthermore, Thomas Tuchel's side won their first Champions League group game 6-0 against Legia Warsaw.
Meanwhile Madrid won, but only just, scoring twice in the last minutes of the game to earn a 2-1 win over Sporting Lisbon.
Oh and did we forget to mention? Dortmund's 6-0 win came courtesy of six different goalscorers - Pierre-Emerick Aubameyang, Mario Gotze, Raphael Guerreiro, Marc Bartra, Sokratis and Gonzalo Castro.
Real Madrid, contrastingly, have drawn their last two games, ending their La Liga record-equalling run of 16 wins in a row.
It doesn't look so good for Real Madrid. Dortmund have even started sitting on their opponents by the look of it.
But wait, is there hope for the reigning Champions League champions?
Dortmund are only second in the Bundesliga, having lost one of their five games.
Meanwhile, Real Madrid are unbeaten in six and top of La Liga.
And didn't Real Madrid beat Borussia Dortmund to the semi-finals the last time these two met? Indeed they did, winning 3-2 on aggregate in the 2013/14 quarter-finals.
Perhaps this game is a little harder to call than we thought.