^That doesn't make them underdogs. Wishful thinking doesn't create underdogs. Underdogs are the unproven teams.
I completely see what you mean, though. People (the common young basketball fan) underrate how good the Spurs are. Ironically enough, the fans who underrate the Spurs the least are the Lakers fans
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I don't even see where the hate for the Spurs comes from. Anyone I talk to is rooting for the Lakers, or the Hornets, or the Suns.