West Ham may still go down.

From Jermey Butler in London- Fox Sports

WIGAN Athletic chairman Dave Whelan said overnight he believes West Ham could still be relegated from the English Premier League if Sheffield United can prove the London side registered Carlos Tevez illegally for a second time.

He was speaking in the aftermath of West Ham securing Premier League survival with a 1-0 win over champion Manchester United at Old Trafford on Sunday.

Whelan accepts there is no chance of overturning the Premier League's decision to fine West Ham £5.5 million ($13 million), instead of deducting points last month when the club admitted the player's initial registration was illegal.

But he is adamant the second registration was also illegal - an assertion denied overnight by the Premier League - and wants West Ham to face another disciplinary committee. He said Wigan and three other clubs are backing action.

"We can't reverse the earlier decision, we have to accept that, but if he has been signed illegally again, then West Ham will go down," said Whelan.

"I feel he has been registered illegally for a second time. How can they open a new transfer window to sign the player?

"They opened a new window at 4pm on Friday and left it open until midday the next day so he could play against Wigan."

When the two sides met the following day, West Ham won the match 3-0.

Whelan said that Sheffield United is waiting on a circular from the Premier League before deciding what legal action to take.