Juan Mata has revealed that Jose Mourinho told him to succeed at Old Trafford before he left Chelsea.
The playmaker made the move from Stamford Bridge to Old Trafford in the January transfer window, becoming Manchester United's record signing at £37million.
His demise at Chelsea had followed the return of Mourinho, who preferred the play Oscar ahead of Mata despite the Spaniard's success in the two previous seasons.
Mata was used sparingly by Mourinho leading to rumours of a fall out between the pair, leading to his January exit.
But Mata has revealed that he and the Special One parted on amicable terms and Mourinho even told Mata to be a big success at Chelsea's rivals Manchester United.
Speaking to Canal+, Mata said: "We spoke and [Mourinho] said that he thought this was a good option for me, and I told him I thought this was a good option for me.
"We didn't speak for long. I wasn't playing, and to be honest, I am happy when I play football. It's the thing I like to do the most. He wished me good luck and told me to be good, as did everyone at the club.
"They weren't just my teammates, but my friends. Fernando [Torres] for example. I was very saddened to tell him I was leaving him.
"It was tough to tell him I was going because he is a very important person to me, but we'll keep in touch because we aren't that far away from each other."
Mata was brought to Old Trafford by David Moyes in an attempt to salvage what has been a disastrous campaign for Sir Alex Ferguson's successor.
United still sit 11 points adrift of a top four place and face a huge battle to qualify for the Champions League.
Mata says that matching the standards set by Ferguson is near impossible but has backed Moyes to succeed nonetheless.
He added: "All he has done here, everything Ferguson has accomplished is pretty much unattainable.
"He has won everything possible to win with this club in the last 20-25 years and it's tough to maintain such a level of excellence.
"But at the end of the day, it was these players that won the league last season. And the new manager has arrived knowing what this club is.
"I think he (David Moyes) has a great relationship with Sir Alex Ferguson and with time everything will get better, the results will get better and we'll get back to being where this club deserves to be."