Paul Merson has fired a warning to Arsenal ahead of this weekend’s Premier League clash with Chelsea.

The Blues are set to host Mikel Arteta’s men at Stamford Bridge on Saturday, October 21, as the international break is wrapped up.

Arsenal have carried on their impressive form from last season unto this campaign, and they sit joint-top of the league with 20 points.

Chelsea have managed just three wins in eight attempts, and two of them came consecutively.

While Paul Merson believes the Gunners are clear favourites going into the game, he insists Chelsea have a chance of hurting them, especially with Raheem Sterling in great form.

“They will have a go at Chelsea, so it will be interesting,” said Merson in his Sky Sports column.

“But against the better teams, like Liverpool who had a right go, those are the games they have played well in this season.

“So it will be interesting but, where Chelsea are in the league, teams will not want to play them as, on their day, they can beat anybody and when Raheem Sterling is playing like he did at Burnley, then he is unplayable.”