"Now, when his body says "It's enough", the club and myself want to keep the man". "It's something I'm interested in, it's something I've thought about in recent times but I'm not getting ahead of myself".
Mourinho has no plans for a major overhaul of his squad, arguing he does not have the finances to buy players at will, which could be interpreted as a criticism of Manchester City.
"I think our team this season have shown that on certain days they can turn up, as they did against City and at Wembley against Spurs".More news: Top Chinese economic adviser to visit USA next week for trade talks
It was the first time in years when Manchester United lost away against all three newly promoted teams.
Alexis Sanchez's January arrival has increased speculation tenfold that several united stars will be sold in the summer for the Chilean has become one of the few "undroppable" attacking players.
Mourinho confirmed captain Michael Carrick, who is retiring at the end of the season after 12 seasons in Manchester to join his coaching staff, will skipper the side when he plays his final home match against Watford on Sunday.
But back in the starting XI and crowned the club's Premier League Player of the Month for April, Mourinho insisted he has no plans to sell the 25-year-old - who cost United £89million from Juventus in 2016.More news: Dame Barbara Windsor's Alzheimer's: Ross Kemp praises decision to speak out
'I do not have any problem with Mourinho, I do not think he has either.
Pulisic, a US worldwide, is rated as one of the brightest prospects playing in Europe, and his Bundesliga club is said to value him at about £40 million (R669 million).
Asked whether he could be set for a loan move, Mourinho replied: "No". To impress me? He impresses me.More news: Spurs 1-0 Newcastle: Kane fires Tottenham to UCL next term
"Unless there is a flawless squad, where you buy one goalkeeper you don't like then you buy another one". In my squad, I have some players where I would like to have better than what I have. "So in this moment, for me, he is staying".
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