24th July vs. Ajax Cape Town
That leaves three days minimum to go to USA, it's possible I guess. Though It probably depends on who offers the club the most money.
Also, look at the html source of the official website. The keywords for the site are:
A.C. Milan, Chelsea, Galaxy, Inter, Juventus, Real Madrid, Benfica, Everton
Looks to be a good pre-season!
http://i.imgur.com/OAxX4Yd.png