Half the touches, twice the impact - Isak v Havertz
Kai Havertz's touch map from the 2-0 second leg defeat at Newcastle might be one of the most sporadic we have seen from a player deployed as a number nine.
While it is not every striker's job to be a poacher and stay in and around the box at all times, it is not often that a striker's touch map is quite this spread out.
There seems to be no real common area of the field where Kai Havertz was picking the ball up from, he was quite literally everywhere.
It is almost difficult to pinpoint which is Newcastle United goalkeeper Martin Dubravka's area (right) and which is Arsenal goalkeeper David Raya's area (left).
Out of Havertz's 44 touches during the game, only six were in the Magpies' 18-yard box which, for an Arsenal side needing to overhaul a two goal deficit before a ball was even kicked, was not nearly enough.
Indeed, he had the same number of touches as creator-in-chief Martin Odegaard, but could not prompt any kind of miraculous comeback.
Interestingly, Newcastle counterpart Alexander Isak has a similarly spread touch map and only one touch in the opposition box.
His contributions were far more devastating though - that touch being his shot against the post that brought the opener.
Indeed, with Newcastle set up to play exclusively on the counter, it is perhaps unsurprising Isak had fewer than half the touches of Havertz - and that his positioning was also all over the pitch.
What is certain is that Newcastle's expected goals figure of 1.73 easily outweighed Arsenal's 0.94 with Isak proving far more potent that Havertz in his more limited usage.
Plenty of food for thought for defeated boss Mikel Arteta as he surveys his depleted forward line.
