West Ham were set to complete the signing of France midfielder Alou Diarra from Marseille this afternoon.
The Hammers issued a statement on their official website today in which they revealed they were on the brink of "tying up a major new signing in the next few hours".
Press Association Sport understands the player involved is 31-year-old Diarra, who was reportedly slated to arrive in London this week to undergo a medical ahead of a £2million move.
A statement on www.whufc.com read: "West Ham United are hopeful of tying up a major new signing in the next few hours.
"The deal for the international star is at an advanced stage and it is hoped the transfer will be confirmed later on Friday."
Signing Diarra would be a coup for West Ham, with the midfielder one of France's better performers at Euro 2012, despite a disappointing season with Marseille.
He also failed to make the grade at Liverpool, spending virtually all of his three years there on loan.
His Marseille exit seemed inevitable when he reported back from Euro 2012 six days late and was fined.
Wolves confirmed to Press Association Sport earlier today that they had turned down a £9million bid from the Hammers for winger Matt Jarvis.