The 23-year-old is now on loan at the Rossoneri from English Premier League side Everton until the end of the season, after seeking a move away in search of regular first-team football.
However, his performances have also attracted the attention of Barcelona, who hold an option to re-sign him this summer, and director Robert Fernandez admitted that it was one they could be tempted to exercise, although Deulofeu was cool on that idea.
Deulofeu eventually joined Everton on a permanent basis in summer 2015, but has now fallen out of favour under current boss Ronald Koeman.
Deulofeu's career has been reignited by the Rossoneri with 10 appearances in all competitions - which has yielded a goal and three assists - helping him earn a recall to the senior Spain squad for matches against Israel and France. He has completely ruled out a return to Everton after his loan spell at the Serie A side ends.
"If I had not accepted Milan then I definitely wouldn't have been called to the national team".
Kerber rallies to reach fourth round; Halep bows out
Mladenovic broke three times in each set as Halep was punished for her missed chances , converting just three of 22 break points. I mean, she played from the beginning until the end good tennis, and she was aggressive.
"He was, in fact, due to come to us on loan from Barcelona but because of Roberto Martinez's Spanish connections, he chose Everton". Now I'm on loan at Milan, I'm owned by Everton and Barcelona have a buyback option.
"I am very happy in Italy with the support I have received from the coaching staff and my team-mates", said Deulofeu in Wednesday's press conference. It is a great club.
"It was the toughest moment of my life, but I learned to accept what the doctors told me I had to do".
"It is nice to hear things said about you but if I was to stay at Milan then I'd be happy".