Who Are Fedor's Rivals?

According to Fedor's manager:

Notice Tim Sylvia is nowhere on that list, although Finkelstein could very well be speaking off the top of his head. Still, though, with reports surfacing last year the Fedor had years ago turned down a fight with Sylvia for reasons that implied they didn't like the style match-up, it sure seems odd they are potentially taking the fight now and not listing him as a potential rival.

Given the nebulous nature of what "rival" could mean here, perhaps I'm being a little dramatic by noting the omission of Sylvia. Or perhaps Sylvia's recent decision-only wins have changed in his image in more minds than just fans of the sport.