Sanchez is in the final six months of his contract at Arsenal and had been expected to move to United's local rivals Manchester City, after he almost joined Pep Guardiola's men at the start of the season.
Though, the player is struggling to get back in full flow this season and looks to have been sidelined in recent weeks.
Nevertheless, Mourinho does not think that any signing will bridge the gap between United and City in terms of points in the Premier League this season, with Guardiola's side 15 clear ahead of their trip to Liverpool on Sunday.
When directly asked whether the 28-year-old would stay, he said: "My approach to players is that every player has a price".
The Armenia global has started only two of United's last 15 games and was left out of Mourinho's matchday squad for six consecutive matches in November and December.
PwC barred from auditing India listed firms for two years
Matters related to Satyam were also looked into by USA regulators as PwC is also a listed company in the American market. SEBI announced the ban in connection with the role of Price Waterhouse (PW) in the Rs 8,000-crore Satyam scam of 2009.
'And I am not the kind of blind manager. So hopefully we can improve our level because I really think it was good. Blind in the sense that this player is untouchable, this player can never be sold.
United did not buy a single player in the 2016 or 2017 winter transfer windows, and the only player they picked up in the 2015 January market was back-up goalkeeper Victor Valdes.
"Normally, next summer, we would try again to improve our squad in the different departments, to try to make every department stronger". Then it's up to us to make the decision: yes or no.
"But Mkhitaryan played the last match in the FA Cup against Derby".
Stoke will play their first match since the sacking of Mark Hughes, after losing their last three matches and scoring just one goal in that time, with coach Eddie Niedzwiecki expected to be in temporary charge.
"If it happens, happens, if it doesn't happen then it doesn't happen but I like my squad, I like my players, the more time I spend with them this week was also good to be sure of that".