De Gea almost moved to the Spanish club two years ago before the transfer collapse on the final day of the 2015 summer window.
Mourinho confirmed De Gea would not be sold, and that if nothing else is a huge statement on how United are planning for the future and the upcoming season.
Mourinho suggested United allowed De Gea, who has two years left on his terms, the choice of whether to move to Real.
"He is a very honest boy, very straight".
"He was contacted for a long time [by Real]", the 54-year-old said.
"Overall, I think they're in good shape".
Israeli forces attack worshipers at al-Aqsa Mosque
But police said that despite the tensions, hundreds of worshippers had entered the compound. Proposals to change security measures at the compound have sparked controversy in the past.
Mourinho has also insisted he is very happy with his current group of players and how they are progressing ahead of the new Premier League season, but he is still hoping to add at least one more player within a hard transfer market.
"We have many options for people, players coming, but until the deal is done out of respect for the other clubs I can not say absolutely anything", he said. The managers, the owners, they are not happy if you speak about them.
"My plan for the evolution of the team, my second transfer window, was to get four players and get balance and make a better squad". But with the development of the market, getting the feedback from Mr.
"If the club has no chance to give me the four players, I like my group and I go with them, but I still have the hope I can have a third player, and maybe a fourth".
Speaking to City's official website, Danilo said: "I'm really looking forward to the challenge and would love to win the Champions League with Manchester City". "As soon as I heard of his interest, I knew immediately I wanted to be a City player".