Mynx

Mynx is a playable character in the game Mario Tennis: Power Tour for the Game Boy Advance. She is one of several human characters created exclusively for the Mario Tennis series. She is a technique-type character, her doubles partner is Dweezil, and her power shot is the Flashflop Shot. She has a lot of confidence in Dweezil, but after he loses to Willy she loses all confidence in herself and is swept by Willy in the quarterfinals. She doesn't see your talent at first and says it will be "decades" before you get to play Team Dweezil, but when you advance to round two they acknowledge your skill. Mynx is also implied to be somewhat of a rival to Tori.