The Owner of FF9 posted...
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Snake > Zelda
Sonic > Auron
Snake > Sonic
[Loser's]
Zelda>Auron
Zelda vs. Sonic
Another way to get Sonic/Zelda is to have a result of Snake > Zelda and Auron > Sonic in round 1 of the Legends Bracket, which would create a Sonic/Zelda match in round 1 of the Loser Bracket.