West Ham United have confirmed the signing of American defender George John.
The FC Dallas defender has signed a two-month loan deal with a view to a permanent deal.
The 24-year-old, who saw a move to Blackburn collapse last August, has Greek heritage and is ready to make his debut for the Championship club.
"I am happy to be here, excited by the opportunity and enthusiastic about playing under the manager and getting better," John told West Ham's official website.
"I feel good and hopefully I can get into some training and get up to the pace.
"I know West Ham is traditionally a very strong club, one of the strongest clubs in England. I am looking forward to playing with the team and hopefully helping them in their promotion aims. They are in a good position in the Championship."
Manager Sam Allardyce added: "He's a good defender, of the right stature, and the right ability and the right ambition who sees his future in this country."
Allardyce also confirmed he is considering signing Japanese trialist Ryoichi Maeda.
The 30-year-old Jubilo Iwata striker has been training with The Hammers this week.
"He's a player with a proven track record, I have to decide if he can play a part in the team quickly," said Allardyce.