The Guardian says personal terms have already been agreed between United and Ibrahimovic's agent, Mino Raiola, over the striker's salary while Sky Sports said yesterday he would be signing a one-year deal.
However, they state a move will depend on the outcome of discussions between Ibrahimovic and Mourinho.
The 34-year-old wants to know that he will be an important part of Mourinho's plans as he does not want to be a back-up player at this stage of his career.
Wayne Rooney, Anthony Martial and Marcus Rashford are the senior strikers currently at Mourinho's disposal.
Source: Asianbookie
Source: Asianbookie