[TherathxRikku]

That would be one giant mind****. It's plausible, but Square, subtle as they are, still give hints for all their plot secrets. Lenne was never mentioned as pregnant, or even having been a mother. It'd be an interesting plot twist, I could believe it, but the Fayth of Bahamut was not the only Fayth included in the making of Tidus. :/

@noelly94, Shuyin is indeed a Blitzball player to some respect. He fights just as nimbly as Tidus does, as you mentioned, and one of his "Limits" is Terror of Zanarkand, which is a ripoff of Tidus' overdrive Blitz Ace. The attack includes a blitzball in both versions, and Shuyin's was Wakka's World Champion. Makes you wonder if Shuyin had it donated to the Blitzball community to end up in the hands of the greatest player in Blitzball. If not, then Square probably wanted to keep from having the entire overdrive being duplicated by using the World Champion instead of a traditional blitzball like Tidus uses. We will never know.