Glory hunter. Once upon a time during the 90s and early 00s. Barcelona couldn't play football you know. Threatened to get themselves relegated n the early 00s.
Umm... no. He supports Real Madrid because his dad supports RM - pretty normal to support the team your family does. Toni has always supported Barca. And obviously Miguel Angel, who played for Barca, is also a Barca supporter. They all supported Barca when Nadal's uncle was playing for them but after that Nadal could go back to his RM supporting ways...
As for the timing of it I think it has to be then because only then could they play on the grass of the stadium as no football will be played there and they'll redo the turf for the new season afterwards. It's planned as one of a few big events to celebrate 110 years of Real Madrid so they can't just do it next year or something. All in all if Fed can play an exo in a different continent 2 days after the Dubai final and then play in a Masters less than a week later (which actually has more points available than the Olympics) then I don't think one short exo would do much harm to his Olympics chances. (And no I'm not comparing the prestige of the Olympics to that of a Masters, just that on the whole the bad timing kind of makes sense and you'd think Roger "I'll be there whenever he needs me" Federer could make it work).
Other than Federer the only people who make sense are Djokovic (they won't go for that for obvious reasons) or an old great like Agassi, Sampras or Borg. As much as I like Ferrer he's not up to the standard of playing in front of potentially 85,000 people - you should have at least won a Masters & got to a slam final!