3. What if Ben White scores....
Games of this magnitude are often decided by moments that happen or ones that don't and in Ben White's case, it will be a massive feeling of what if.
With Arsenal taking the lead through Saka, White had a superb chance to double the lead minutes after, as Kai Havertz fed him through on goal and he was one-on-one with Manuel Neuer.
But White hit his shot straight at the German and the chance was gone. Had he hit his shot half a meter either side, it was 2-0 to Arsenal.
And how different the tie could have been.