At Miami, it's probably Aizpitarte. He's got a good chance to become a really good player for one reason: he can catch and return pretty well on BOTH sides, something we don't see many up and comers able to do. This is exactly what limits Girard...he STILL runs around the forehand.
At Dania, it's Medrano...no questions. He's too good for the earlies and still overshadowed for the lates, so he will continue to win at a ferocious clip in those early games.