Torres is thankful to both clubs he played at in England.
Torres joined the Italian giants on a two-year loan from Chelsea after falling down the strikers pecking order at Stamford Bridge - with the Blues signing Diego Costa and Didier Drogba, and Loic Remy was a late arrival following the Spaniard's departure for Milan.
Torres - who joined Chelsea for £50 million in 2011 from Liverpool - said at his unveiling: "I want to thank my two English clubs, Liverpool for bringing me to the Premier League and Chelsea for the trophies I won.
“After all these years, however, I needed a change, something that would give me the desire to play, to feel important.
“AC Milan is all I needed, a great club with great fans where I will try to shine and come back myself. We need to return to the first three (Serie A teams) and I want to get back my past levels."
Torres was prolific in front of goal during his time on Merseyside but couldn't replicate that form at Stamford Bridge.
At Liverpool, Torres scored a total of 81 goals in 142 games for the Reds but failed to win any silverware with the club.
At Stamford Bridge, however, Torres was part of a side that won the FA Cup, the Champions League and the Europa League but his own form suffered scoring 45 goals in 172 appearances. The Spaniard failed to find the same kind of consistency which made him so prolific at Anfield and one of the most feared strikers in the division.
Now he's at a Milan side which struggled last season, but he's hoping both he and the side can be resurgent during their time together.