The Red Devils are not opposed to letting the homegrown midfielder leave, per the Manchester Evening News.
However, Mctominay was valued at £40m by the club last summer and had a stellar campaign.
Galatasaray vice-chairman Ibrahim Hatipoglu admitted to interest in the United player.
"McTominay's transfer fee is being discussed," Hatipoglu said, as quoted by Haber Sarı Kırmızı.
"Pierre-Emile Hojbjerg is a good player, he has many suitors, he wants to see all options.
"There is no talk of single-digit figures for right-back and midfield transfers. But we have allocated a budget of less than €10million for right-back.
"There is no negative situation regarding Guela Doue . Negotiations are ongoing McTominay and Doue. Wan-Bissaka is not our priority."