It was a looped header, no one in front of him he is their main target Fumis Mori out jumped but no one in front of him to block it or put him off
Kids stuff!
Actually Funes Mori jumped higher but Olsson was in front of him and won it well with the near post flick. I wouldn't be overly critical of that goal really. Bit of a lottery sometimes.
I honestly wouldnt know how many teams do put players on the post for every corner, so dunno if that is a fair criticism.