OJ files appeal over Las Vegas robbery

An appeal document lodged by OJ Simpson against his 2007 Las Vegas armed robbery case is 43 per cent longer than the court agreed to accept.

OJ Simpson's lawyers have filed an appeal for a new trial in his 2007 Las Vegas armed robbery case. (AAP)

OJ Simpson's lawyers have filed a super sized appeal, asking the Nevada Supreme Court for a new trial in his 2007 Las Vegas armed robbery case.

Simpson lawyers met a midnight Wednesday deadline to submit an appeal, claiming Simpson's 2008 trial in Las Vegas was tainted by his football fame and his notoriety following his 1995 acquittal in Los Angeles in the deaths of his ex-wife and her friend.

But the document is some 43 per cent longer than the court agreed to accept.

That means the court has to decide whether to accept it before it's made public.

The appeal stems from arguments rejected last year by Clark County District Court Judge Linda Marie Bell that Simpson's trial lawyer botched Simpson's trial and first appeal to the state high court.