Arsenal face Chelsea this weekend, in a clash which looks to be badly timed for the Gunners.
Not only are they missing star man Aaron Ramsey through injury, but the Blues are in red hot form, and have a chance to go nine points ahead of Arsenal after only seven games.
Conversely Arsenal can reduce the advantage to three points with an away win.
Arsenal legend Ian Wright is however pessimistic about their chances, and believes Diego Costa will be hard to stop.
He told BBC's 606: "I look at Costa, if he's playing. I fancy him, if he's playing against Arsenal to be trouble and turn into Drogba.
"Watching us the other day I wasn't too impressed against Spurs.
"I don't want to predict scorelines but the way Chelsea have started, you have to fancy them right now."
Diego Costa has been prolific so far, netting eight goals in six games, helping Chelsea to five wins out of six.
The Spaniard was a player linked with Arsenal before signing for Chelsea, and Wright is referring to his 'turning into Drogba' in regard to the Ivorian's near-perfect record of scoring against the Gunners through his career.