Nintendo Versus, Nintendo's competitive division, has recently posted up registration for a Mario Tennis Aces tournament. This tournament has no entry fee, and the only requirements are being a legal resident in Canada (Age 13+), United States (Age 13+), or Mexico (18+) and having access to play Mario Tennis Aces online. Registration is open from now until September 19th, 10:00 AM PST. The Tournament starts on September 19th. The Top 8 players will receive 2500 My Nintendo Gold Points (25$). The registration page can be found here.
Author's Note: Anyone playing Mario Tennis Aces? Will you join? I, personally, still don't own the game. Let us know in the comments below!