Angola striker Manucho expects to be part of United's first team squad next season after completing a three-month loan spell at Panathinaikos.
The 25-year-old was offered a long term contract at Old Trafford last December after impressing during a trial with the club. He has spent the last few months in Greece where he scored once during eight appearances.
Although yet to obtain a work permit, Manucho remains confident things will be sorted in time for him to link with his new team-mates for pre-season.
"The club is dealing with the work-permit process and I have been asked to turn up on July 1 for pre-season," revealed the striker, who is currently on international duty.
"Since the end of the Greek league, I have been in contact with United assistant manager Carlos Queiroz and I know that things are going well.
"I am not thinking about wearing a shirt other than that of United. I am just thinking about playing in the Champions League next season."