Chelsea and Manchester United have agreed on a provisional £37m deal for Juan Mata and United are confident of landing him by the end of the week, the Daily Mail reports.
Negotiations are believed to be in an advanced stage and the 25-year-old Spanish International is convinced he will have a medical before the weekend.
The Red Devils are being careful in the pursuit of Mata due to their failure to land big names during the summer, but David Moyes is confident a deal will go through.
With the World Cup only a few months away, Mata has grown frustrated with the lack of first team opportunities under Jose Mourinho and needs regular playing time to guarantee a place in the Spain side.
The World Cup winner has only completed 90 minutes three times this season, falling behind the pecking order to Oscar, Hazard, and Willian.
20 goals and 35 assists in all competitions last season highlights his immense contribution to the team and Manchester United need the extra quality in midfield to push for a Champions League spot.
Moyes is eager to land a big name this January and Mourinho has already accepted the fact that Mata demands first team football making the move encouraging for Premier League Champions.
United are believed to be extremely active in the current transfer window, also looking at Dante, Johan Cabaye, and Edison Cavani.