As per the official site:
Jerome Boateng has agreed the terms of a five-year contact to join Manchester City from German Bundesliga side Hamburg SV.
The German international defender will formally become a City player from July 1st. As this date could still coincide with his World Cup duty with Germany, Boateng conducted a whistlestop tour of Carrington and City of Manchester Stadium in order to finalise the details of his move ahead of the big kick-off in South Africa.
Not a surprise signing of course but it is positive that the deal was agreed and finalised ahead of the World Cup so Boateng can link up with the club at the conclusion of the tournament - something Mancini emphasised:
"It’s good for Jerome to have agreed terms ahead of the World Cup, so he can now concentrate on playing for Germany. And I will be very interested to see how he gets on in the tournament, before welcoming him back to meet his team-mates in pre-season."
He looks to be a good addition and perhaps more fits the profile of the type of player the club are looking to bring in as opposed to the more 'ready made' option typical of the Mark Hughes regime.
Of course Boateng is the third player to follow the path to the club from Hamburg, with Vincent Kompany and Nigel de Jong already proving to be excellent additions both in terms of talent and the mentality they have brought to the club.
Although Boateng can operate on the right or more centrally, you imagine that he may be tabbed to fill the right-back position that neither Pablo Zabaleta, Micah Richards or Nedum Onouha really made their own at any stage last season - with question marks surely over the future of the latter two.
Definitely a player to watch in the forthcoming World Cup then.