The Gunners moved to 7/2 at Paddy Power after beating Fulham and jumping into top spot after Chelsea yet again failed to get 3 points.
The current champions have drifted to 2/1 with and Man City are now within just a point of them while Man United have a game in hand. City are a 9/1 chance with Betfred to snatch the league away from the established winners.
Everton’s season may finally have kicked into life with a well fought draw at Stamford Bridge but they are still 12/5 at Totesport to make the top 6, while neighbours Liverpool, who play Monday night, are just 5/6 (Stan James) to finish 6th or better.
At the other end, West Ham slumped back to the foot of the table after Wolves had briefly occupied 20th. The two sides are now 8/11 (Coral) and 4/6 (Paddy Power) respectively to be relegated, while Wigan are also 8/11 to drop down a division (Coral).