"We're delighted to sign a world class striker. Tottenham chairman Daniel Levy drives a hard bargain but we've got our man," said West Ham chairman David Gold.
Keane will become West Ham's fourth signing of the January transfer window after the arrival of Demba Ba, Wayne Bridge and Gary O'Neil at Upton Park,
David Gold has also assured West Ham fans that Scott Parker is not for sale and that he will resist any future offers for the England international before the transfer window closes.
"Nobody can leave. You can see our situation. We would fight off any club pursuing our players," he said Gold. "The next 14 games will be as important a 14 games as there have been in the history of the football club."
Will West Ham Avoid Relegation?
