With the start of new season, things are clearly favourable for Arsenal to have good result against Tottenham in this interesting game with they are having no depth for good results against top teams like we have them into last game against Newcastle United while they fail to keep things for good result and also have poor game against newcomer Leicester City.
Arsenal is having good start despite giving points to Brighton at Emirates Stadium due to red card of Rice and their attack is also doing good but if we have any problem then things can take good change which is always on cards.
In last few games we are having some troubles for Tottenham as well but still they are doing good job and trying to keep themselves into top spots with their attacking style this game is surely going to be important for both sides as they are looking for staying into hunt for having better start of their season and keep things on good side.
Arsenal is still in good path to continue to win every game that comes their way but I don't know how they are going to quickly catch up with Manchester City, they have not loss any match and I'm not sure if the are going to lose any anytime soon because we are not anywhere yet in the season and Haaland is already making hat trick in the Premier League but still I don't blame Arsenal for their lost against Brighton, it was not expected but it will be difficult to win 10 men against 11.
I expect them to trash Tottenham by weekend, Tottenham has played 3 games and they have won just 1 game, draw 1 and lose one, they are below average this season because the teams they have played aren't strong team. Even Everton they beat, it's because they had an advantage of them been a minor team but in the last 2 season when they were doing great, they have lost 4 games to Arsenal both in home and away. They have only won Arsenal when they were having bad season.
about this next Arsenal game that will be against Tottenham, in my opinion Tottenham should not be underestimated, because even in past seasons when Tottenham were worse than this season and Arsenal were strong, Arsenal still won with difficulty and sometimes drew, we can see this in this photo
https://livescores.biz/h2h/arsenal-vs-tottenham-cfThis season, Tottenham conceded 3 goals in 3 games but scored 6 goals. Despite losing the last game against Newcastle, Tottenham managed to dominate possession and shots on target and it was not an easy victory for Newcastle. It was a very difficult victory which in my opinion makes me think that Arsenal will have a very difficult game against Tottenham in which a draw could be a real thing that could happen and Arsenal would lose points. But if Arsenal really wants to win the title, they will need to beat Tottenham and win after the game against Tottenham. This game:

will decide whether Arsenal wants to win the league or not. If they lose to City, it will be very difficult to stay at the top of the table.