Arsenal manager Arsene Wenger insists he won't allow himself to be drawn into another war of words with old rival Jose Mourinho ahead of Saturday's clash at Chelsea.

Wenger and Mourinho have a long history of exchanging jibes through the media in a tetchy relationship that occasionally boils over when they come face to face.

The most memorable examples of that animosity have occurred over the last year, with Wenger infamously shoving Chelsea boss Mourinho during a furious touchline row at Stamford Bridge, while the pair went to great lengths to avoid shaking hands after Arsenal's Community Shield win in August.

In the past, Mourinho has branded Wenger a "specialist in failure" and a "voyeur", but despite the bitter feud the Arsenal boss would rather his side's performance on the pitch make the headlines this weekend.

"No special relationship (between any manager) is my worry, all I worry about is our performance," said Wenger, who has won only one of his 14 meetings with Mourinho.

"I respect everybody in the job and focus on what I love and that is football. All the rest honestly does not concern me much.

"Realistically people come to watch football and all the rest is a little bit secondary. What is important is the quality of what we will see on the pitch and you want people to focus on that."

Asked if he would shake Mourinho's hand and if he regretted their touchline bust-up, Wenger replied: "I don't want to talk about that. I have nothing more to say about this situation."

For his part, Mourinho has warned Wenger that Chelsea are back in the groove.

Mourinho's Premier League champions are languishing just above the relegation zone following a miserable run of one win from their first five matches, but the Blues boss is confident his players are beginning to rediscover their swagger after a 4-0 demolition of Maccabi Tel Aviv in midweek.

That vibrant opening to their Champions League campaign was a stark contrast to the doom and gloom that surrounded the club after their worst start to a season since 1988.

Yet Mourinho expects a powerful performance against an Arsenal side reeling from their surprise Champions League defeat at Dinamo Zagreb.

"We come with a different feeling. We can wake up with a different state of mind," Mourinho told Chelsea TV.

"Saturday is a big match, it's a great rival. This result can put us in a better situation.

"We had too many bad results. We couldn't have this one on top of it."

- Lacklustre -

Manchester City's flying start to the season ground to a halt with a 2-1 home defeat against Juventus that continued their lacklustre Champions League record.

And Manuel Pellegrini's team would be wise not to underestimate West Ham, who visit Eastlands on Saturday looking to claim a third famous away win of the season after triumphs at Arsenal and Liverpool.

"On one hand it would be a surprise of course if we won because before Juventus, Man City scored 11 goals and didn't concede, they are cruising," West Ham manager Slaven Bilic said.

"But to be fair it would not be a shock considering we have done it two out of two (in away games) already."

Manchester United, five points behind City in third place, will bid for an uplifting end to a traumatic week when they travel to Southampton on Sunday.

Louis van Gaal's team slumped to a 2-1 Champions League defeat at PSV Eindhoven on Tuesday and to make matters worse England left-back Luke Shaw broke his right leg in two places following a challenge by Hector Moreno.

Newcastle, Sunderland and Stoke -- the three top-tier sides still waiting for a first league win this term -- aim to end their barren runs against Watford, Bournemouth and Leicester respectively.

Leicester manager Claudio Ranieri, whose team are surprisingly unbeaten in second place, has offered his players an appetising incentive to keep Stoke at bay.

"I told them, if you keep a clean sheet, I'll buy pizza for everybody. I think they're waiting for me to offer a hot dog too!" he said.

Fixtures (1400 GMT unless stated)

Saturday

Aston Villa v West Brom, Bournemouth v Sunderland, Chelsea v Arsenal (1145 GMT), Manchester City v West Ham (1630 GMT), Newcastle v Watford, Stoke v Leicester, Swansea v Everton

Sunday

Liverpool v Norwich (1500 GMT), Southampton v Manchester United (1500 GMT), Tottenham v Crystal Palace (1230 GMT)