Carlos Tevez will not complete his move to Manchester United on Tuesday and may not be registered for the start of the new season, Sky Sports understands.
The Argentina international had been expected to join The Red Devils last month, but a dispute over pay between West Ham and Tevez's agent Kia Joorabchian has held up the switch.
The transfer has been dragging on all summer and it first seemed unlikely any move would be completed before the start of the season after Fifa refused to arbitrate on Tevez's contractual situation, which led to Joorabchian's Media Sports Investments group issuing a High Court writ against The Hammers in order to push through the deal.
Joorabchian had hinted an out-of-court settlement would be reached last week, but the affair is still dragging on and at the moment doubts hang over whether or not Tevez will be able to begin the new campaign with his new club.