Arsenal's arch rival in the Premier League is Manchester City. Arsenal are probably top of the points table so far, while Manchester City are looking to win every match to go top. I think that if Manchester City and Arsenal meet in the semi-final at the end, then we will see a great match in this league.
I see that Manchester City's chances of taking first place from Arsenal are very big because Arsenal have played 32 times so far and Manchester City still have 30 times. This provides greater opportunities for Manchester City because Arsenal have not been able to win the three matches they have played so far including yesterday's game against the bottom team in the Premier League this season, namely Southampton. So it will be very difficult for Arsenal to maintain the top position in the standings for the rest of this season because Manchester City is not an easy opponent for Arsenal in the next match.