#2 Granit Xhaka's free-kick
Newcastle went into half-time as the more satisfied unit among the two. The Gunners looked shaky at the back, unsure in attack, and scrappy with their passing. The game looked in the balance when the second half started off, with the visitors under pressure to improve on their returns from the first 45 minutes.
However, a free-kick came Arsenal's way in the 49th minute, when substitute Lucas Torreira was taken down by the hosts. Xhaka, who is known for his occasional rockets from outside of the 18-yard-box, came up with the goods off the set-piece to score the opening goal of the encounter.
The strike changed the course of the match, as momentum turned swiftly in Arsenal's favour, which coupled with a steep loss in steam from Newcastle's 4-4-1-1 system.