Arsenal secured a huge win against Liverpool on the road to leap to the top of the Premier League table.
Mikel Arteta's men took the lead through Kai Havertz in the early stages of the match before weathering a barrage of Reds pressure to protect their three points.
A number of Gunners stars stood out in the thrilling clash at Anfield, but that is not to say there were not signs to learn and improve upon as the season rumbles on.
SunSport's Simon Collings singled out three things we learned from Arsenal's triumph on Merseyside.
KONSA-QUENCES
The defence was at the heart of Arsenal's performance as they stole all three points at Anfield for the first time in 14 years.
Ezri Konsa put in a stunning performance alongside Gabriel at the base of the back four as he continues to build on his impressive catalogue of showings since joining from Aston Villa in the summer.
William Saliba is potentially set to make his return to contention in the coming weeks, and could be available for selection as early as after the November international break.
But the Frenchman faces a fight if he wants to reclaim his spot in the starting line-up.
Konsa has built up his relationship with his defensive partner this season, and deciding whether to split them up may prove a real dilemma for Arteta in the near future.
THINK RICE
Declan Rice continued to impress in midfield as he put the ball on a plate for Havertz at the back post to give the Gunners an early lead.
That made it five assists for the season so far for Rice, who is adding a creative spark to his repertoire of skills this campaign.
But the impactful showing comes on the back of him receiving a rest in the midweek.
The quality of his performance at Anfield is proof that Arteta will have to carefully manage his minutes going forward this season so he can make the difference in the biggest clashes.
RACE FOR PACE
But while the back line and the midfield shone, there was a glaring issue at the other end of the pitch.
Liverpool had the visitors pinned back for large spells in the second half, but Arsenal lacked the pace up front to provide a danger on the counter attack.
The absence was especially stark watching the likes of Bradley Barcola and Alexander Isak bombing down the channels for the hosts when they regained possession.
Arsenal were unable to exploit the space behind Liverpool's back line when they cranked up the pressure in the defensive third, but a pace injection in the January window could make them a real danger on the counter.