By Chris Harris

Arsène Wenger believes it is "too early to say" whether Manchester United can complete a clean sweep of the major trophies this season.

Sir Alex Ferguson's side beat Tottenham on penalties to lift the Carling Cup on Sunday and, with the Club World Cup already in the bag, there is much speculation over whether they can win an unprecedented 'quintuple'.

United are firm favourites to retain their Premier League crown - they lead Chelsea by seven points with a game in hand - and are still in contention for the Champions League and FA Cup. Wenger acknowledges that the champions are in a strong position, but he knows that could change.

"[The quintuple] is not realistic because it has not been done," Wenger told Arsenal TV Online.

"But for them it is still possible so you have to consider that they could be the first team to do that.

"It is open for them but I still believe it is a bit early to say that. In the Champions League, FA Cup and Premier League they look in a strong position but you never know.

"It is always done quicker in the newspapers than on the football pitch."

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 3 Mar 2009