How is this surprising? Both FIFA and PES attempt to recreate the sport as realistically as possible, and this includes the ads seen at football matches. Since Sony is a common sponsor of the UEFA Championship League, it's not unexpected that you'll see their ads in the game.
They've had ads in these games for years, from PS3 to 360 and now to 3DS.
Edit:
Beat me to it NiKKoM. :P







