Reports suggested plenty of clubs were interested in his services over the summer and he had also received an offer from China.
However, Mourinho told Rojo he would be a part of the plan at Old Trafford and rejected all offers for the Argentinian.
Speaking about Mourinho, Rojo claims he is delighted with his direct approach.
“There are many reports circulating earlier, about how he did not want me,” he said.
“But from the first day he arrived, he already told me what he thought and I also say what I think. he is a coach who is very nice and has high demands.
“I love the way he thinks and handle players. I was surprised. Now I will work hard to get more minutes of play on the pitch, that’s what I want.”
Fans have been frustrated with his showings after a string of disappointing performances and many believed he’d be involved in a swap deal with Jose Fonte.
Rojo has failed to prove he can become a reliable back-up for Luke Shaw at left-back, getting turned inside out in each showing he’s made.
Supporters have been left wondering how he’s still playing at the club, but it seems Mourinho has got a clear plan for the 26-year-old.