Frenchman's agent said last month his client wanted to leave United over the summer.
United have already signed Fred this summer, but Mourinho wants to bolster his midfield options.
Who is going where this summer?
Barcelona has made one of Jose Mourinho's forwards its top target.
The forward has been successful this season as a substitute.
The forward will stay at Flamengo in Brazil for two more years.
The Portuguese manager has been public with his criticism of select individuals.
Martial's second season at Old Trafford has not lived up to the first.
The prolific Poland striker Robert Lewandowski will not be moving to Old Trafford.
The likelihood of signing Antoine Griezmann is reportedly receding.
The 54-year-old's team has dropped too many points at home.
Marcus Rashford feels he has gone backwards this season.
Pogba left Old Trafford in 2012 to join Juventus.
United progressed to the EFL Cup final on Thursday.
Anthony Martial has had a disappointing campaign.
Memphis Depay has hardly played under Mourinho.
United hosts Liverpool on Sunday.
Martial has mainly played as a sub during his second season at Old Trafford.
Rashford and Martial are struggling for game time at Old Trafford.
United created multiple clear chances but had to settle for a draw.
The FA Community Shield was a vibrant affair.
The Frenchman has been a ray of light in a disappointing season.
Jeanine Christelle Djomnang collapsed before a match in southern Cameroon.