Arsenal thrashed Everton 5-1 on Saturday, as Aaron Ramsey grabbed a hat-trick and Pierre-Emerick Aubameyang scored on his debut.
It took just six minutes for the Gunners to start firing. Ramsey opened the scoring from a close-range shot. Laurent Koscielny added a second just eight minutes later, combining a header with fellow centre-back Shkodran Mustafi to make it 2-0.
Ramsey got on the score-sheet again with a deflected effort from the edge of the box, before the man whose name is on everyone's lips scored a goal on his debut, chipping Everton's Jordan Pickford for Arsenal's fourth goal.
The visiting side got a rare goal through substitute Dominic Calvert-Lewin. But it was nothing more than a consolation, as Ramsey grabbed his hat-trick with 17 minutes left to play, ensuring the match ended 5-1 to Arsenal.
Here are five things we learned from an entertaining evening in London.
#1 Debut delight for Aubameyang
An entire universe of Arsenal supporters had their eyes on just one man, Pierre-Emerick Aubameyang. As the Gabon striker made his debut after sealing a club record £60 million move from Borussia Dortmund.
Arsenal's new man was given a first start since arriving in England, replacing Alexandre Lacazette and justified his manager's faith in him by scoring his first goal as a Gunner. Aubameyang scored his side's fourth goal of the match, putting a sweet chip past Everton's Pickford.
Television replays may have confirmed that the Arsenal striker was offside, but Aubameyang could care less, as all that matters is that he's got his career at the Emirates off to a great start.