Carlos Tevez's representatives claim the West Ham striker has agreed personal terms with Manchester United.
The Hammers attempted to play down talk of the Argentina international moving to Old Trafford on Friday evening by stating that they expect him to be part of their preparations for the new season.
West Ham chairman Eggert Magnusson also insisted that the Upton Park club would have to agree to let Tevez leave this summer.
But in response, Tevez's agent Kia Joorabchian says the former Corinthians ace has already been given permission to talk to other clubs and discussions have taken place with United.
Joorabchian claims the 23-year-old has now agreed a deal which should see him join the Premier League champions in the coming days.
"The circumstances surrounding Carlos Tevez's relationship with West Ham have been well documented in the media and footballing world," said a statement from Joorabchian's lawyers.
"We confirm that Carlos Tevez has, with the knowledge and permission of West Ham United Football Club, been in discussions with other clubs.
"Subsequently, personal terms have now been agreed with Manchester United Football Club.
"Carlos Tevez's representatives will work during the course of next week so that a move to Manchester United can be finalised as quickly as possible.
"The process for finalising the player's registration with Manchester United will be undertaken in accordance with appropriate procedures."
