Arsenal manager Arsene Wenger believes his side's clash with Manchester United on Sunday will make or break their season.

Wenger's men have suffered a torrid time in recent weeks, slipping away from the summit of the Premier League table, before, on Tuesday against Liverpool, exiting the Champions League.

Defeat at Old Trafford on Sunday would all-but end Arsenal's faint hopes of overhauling Sir Alex Ferguson's side - who hold a six-point advantage over the third-placed Gunners.

But Wenger is convinced that his side still believe they can pull off a dramatic turnaround.

"The season is not over. I believe what is at stake on Sunday is the work of the whole year," he said on Sky Sports News.

"Do you really think that we go to Manchester United on Sunday believing the season is over? That would be ridiculous.

"We have worked extremely hard since the first day of the season against all the odds.

"We will fight until the last second of the championship, especially on Sunday. If we win on Sunday then realistically we can win the title."

Jens Lehmann recently launched another scathing attack over spending the majority of the season on the subsitutes' bench.

But Wenger refused to criticise the German international, adding: "Basically if you can find a player in the country that is happy that he doesn't play then that is a problem.

"I don't speak about it. I select my team. I have nothing personal against Jens.

"I do not think he has ever been disrespectful to me in any training session or any contact I have had with him."

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