Kaka's agent Diego Kotscho hinted that the World's best player may be tempted to join Manchester City in the future. Since Abu Dhabi United Group took over City and completed Robinho's record signing from Real Madrid, new chief Soliman Al-Fahim announced a daring list of new names the club wants to buy including AC Milan's Kaka. "At the moment Kaka would prefer a club like Milan, Chelsea or Real Madrid but in the future who knows what can happen," Kotscho told The Observer on Tuesday. However, the Brazilian's agent considered that in order to lure big names like Kaka, Manchester City will have to prove themselves as a top Premiership power within the next few years. "I think Manchester City is heading in the right direction, but they have big work to do. It's not an easy thing to reach the same level as the biggest clubs in the world." "It's also not all about money, you have to spend it properly and build a great team and in two or three years, they can be there if they do the right thins." Meanwhile Milan president Silvio Berlusconi denied that Kaka was offered to Chelsea as part of the deal that brought Andriy Shecvhenko back to San Siro. "I absolutely did not offer Kaka to Chelsea or anyone else. That is just not going to happen," Berlusconi was quoted as saying by Football Italia on Tuesday. Kaka who missed the season opener due to injury, is expected to be back this week for a friendly test before featuring for Milan against Genoa in the league on September 14th.