West Ham co-owner David Sullivan has confirmed to Sky Sports News that the club will make a formal complaint to the Premier League over Fulham's team selection against Hull City last weekend. Fulham boss Roy Hodgson made six changes from the side that started against Tottenham in the FA Cup and Sullivan confirmed that the club will ask the Premier League to investigate comments made by Hodgson after the match.

The Cottagers chief admitted he rested some of his key players at the KC Stadium ahead of their Europa League match against Wolfsburg.

The Tigers secured a 2-0 win at the KC Stadium to move level on points with West Ham, with a game in hand, in the battle to avoid relegation.

Sullivan says a complaint will be made to the Premier League, via the club's solicitors, on Friday.

The move has added spice because Mohamed Al Fayed's club are still trying to sue West Ham for £450,000 in prize money after the Carlos Tevez-inspired side finished one place above them in the Premier League in 2006-2007.

Fulham are certain to play their strongest side when West Ham visit Craven Cottage for a Premier League game on Saturday May 1.

A West Ham club spokesman said: "Roy Hodgson admitted on TV that he rested players because he had an important Europa League match coming up.

"He admitted fielding a weakened team. From our point of view that is awful and we are going to put in a complaint.

"Fulham are currently suing West Ham for half a million quid. They may find West Ham suing them for £50 million next season."