I don't think it's THAT bad to retire before getting double bagelled. I mean, who wants to lose that way? I don't think you can automatically brand it an injury though, I reckon if he was really injured to any degree of severity, he would have thrown in the towel a lot earlier.
And you're one of the most rational supporters of any player on MTF!
Well, I certainly understand why a player would do it, but I think Flavio is too classy for that and certainly wouldn't do it to his doubles partner.
Flavio still signed autographs after his five-set loss to Cervantes at Wimbledon this year, when he played like absolute shit and wasted what will probably be his best chance to ever win a match at Wimbledon. He's not a prick and never unfair. I just can't see it happening.
And in reply to your earlier statement: I don't doubt he was dreadful beyond words. Those days happen, and they're happening a bit too frequently as of late. It's back to Challengers very soon.