Roma striker Tammy Abraham left Chelsea in 2022 to join Mourinho's side but could return to the Premier League next season.
Manchester United have all their attention on Harry Kane and they will try to sign him at all costs but the board also have Abraham as a back-up, according to the 'Daily Mail'.
The 25-year-old has been on the Red Devils' agenda for some time now as the Englishman has improved his performances since joining Roma.
United want to strengthen their attack for next season and have a plan B if they are unable to sign Kane. Abraham is the main contender as he has scored nine goals and provided six assists this season.