George Cummins, BBC Sport
It has been a very good week for Arsenal.
It is really good news that Timber has recovered from his knee ligament injury. Arsenal's trip to Porto will be too soon for the defender but it's a sign he could play a big role in the remainder of the season. Takehiro Tomiyasu is also back after international duty. Arteta sees him as a big part of the club's future plans and he is expected to sign a new contract.
Back to the Premier League and after Sunday's game, all the talk was about the celebrations at Emirates Stadium with little actually being said about how the Gunners have now beaten both their title challengers at home - Liverpool 3-1 and Manchester City 1-0.
A huge statement that they are serious challenger to City's title.
In fact, Arsenal's record against the 'traditional big six' is very good this season. They have played six, won three and drawn three. They have 12 points and top this mini group of club with two points per game. Another sign of their strength.
They will though be kicking themselves that when City were without Erling Haaland and Kevin de Bruyne, Arteta's side lost consecutively to West Ham and Fulham. There is no more room for slip-ups given how capable Guardiola's team are of going on long winning runs.
As a result, there are still questions for Arteta to answer.
How will he line up against West Ham on Sunday after Moyes' side beat them at the Emirates this season? Defeat at the London Stadium would undo all the hard work of beating Liverpool.
How can they get Gabriel Jesus fit and firing for the rest of the season? They are a better side with him in it.
And, how can they open up teams who play with a low block?