Jose Mourinho has agreed a massive three-year contract with Manchester United.
Sky Sports says he has agreed a three-year contract worth £60million to become Old Trafford boss on Tuesday.
But negotiations over image rights are still ongoing and must be resolved before the contract can be signed.
It is unclear whether these issues will be decided in time for Mourinho, 53, to put pen to paper on Wednesday, reports The Sun.
Mourinho's agent, Jorge Mendes, is not in London to hold face-to-face talks with United executive vice-chairman Ed Woodward, meaning an official deal may be stalled.
United and Mourinho both have their own commercial partnerships and neither one wishes to jeopardise their existing commitments.