Alessio Romagnoli was flattered by Chelsea's offer for him, but says he is happy AC Milan rejected it.
The Serie A side confirmed last month that they had turned down an offer "in excess of €35 million" from the Blues for the 21-year-old defender.
Chelsea ended up buying David Luiz back from Paris Saint-Germain to solve their defensive issues, and Romagnoli says he is pleased to remain at San Siro.
“The fact Chelsea came in for me is pleasing, but I am glad I have stayed here,” he told Mediaset.
“This pushes me on to grow even more and improve myself. I am happy to stay here. President Silvio Berlusconi made a big investment in me and that’s enormous."
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Milan have taken three points from their first two games of the season, having beaten Torino 3-2 in the opening weekend before losing to Napoli 4-2, with Romagnoli scoring an own goal.
While he admits his side are playing catch up with reigning champions Juventus, he is happy with the strength of the squad.
“Milan are behind Juventus now, but I don’t think we are missing anything in particular," he added. "We just need to work together and grow as a unit.
“The new coach, Vincenzo Montella, always tells us to control the ball, so it’s up to us in defence to start the move and I have to say I don’t mind that.
“I am proud to have been called up to the national team, but it’s just a starting point for me. Having this many Milan players on international duty means we are doing well, so we just hope to get better results than in previous years.”