LONDON - Arsene Wenger believes Arsenal is capable of showing even better form as it aims to sustain a title challenge after going top of the Premier League with victory over Fulham.

Samir Nasri's brilliant double-strike earned a 2-1 win at the Emirates Stadium on Saturday and allowed Wenger's team to take advantage of Chelsea dropping points against Everton and Manchester United's game at Blackpool being postponed due to snow.

It means the Gunners are one point clear at the summit despite failing to hit top form this season, yet Wenger expects more improvement in the months to come.

"At the moment we are where we are despite losing three games at home," Wenger said. "Every game is a cup final and if you are not ready you do not win.

"We have spirit and quality but face strong opposition, and it's down to consistency. We are far from winning the championship yet but we have the desire and fight.

"We are good enough to go on, that is for sure. Every single team struggles to be consistent."

Nasri opened the scoring early on after quick footwork in the penalty area left Brede Hangeland and Aaron Hughes on their backsides before he finished past Mark Schwarzer.

Diomansy Kamara levelled before the break - with Laurent Koscielny suffering concussion in the build-up - and a shock appeared to be a possibility.

"I agree we looked vulnerable in the air at some stages but we finished the game with five strikers on the pitch," Wenger said.

"So I expected to suffer on the corners in the air, but overall our defenders dealt well in the second half."

Nasri grabbed the winner with 15 minutes left when he weaved past center-back Hughes and full-back John Pantsil before taking the ball around Schwarzer and finishing from a tight angle.

Agence France-Presse