AC Milan and Kevin-Prince Boateng are preparing for a parting of the ways this summer, with the Ghana international seeking a way out of San Siro.While Boateng has been one of the most positive additions on the whole during Massimiliano Allegri's three-year reign as Milan coach, his performances in 2012-13 have been largely underwhelming.Boateng would also prefer to be used in an offensive role, but he has been utilised in a number of positions by Allegri in his 33 appearances this season, leading the 26-year-old to become disillusioned by his coaches' rotation policy.As a result, Goal understands that the Rossoneri will encourage bids in the region of €15 million for the midfielder.Manchester City officials have monitored Boateng on more than one occasion this season, but both Malaga star Isco and Shakhtar's Fernandinho, with whom talks are said to be at an 'advanced stage', are seen as more viable options this summer.Former club Tottenham are said to have maintained interest in the player they originally signed from Hertha Berlin in 2007. Boateng played only 14 games in two years at White Hart Lane before moving on to Portsmouth, but he remains fond of London.If Boateng's valuation can be met, then both the club and player are keen on an amicable separation at the end of the season.