Legendary Pokemon Mewtwo will be making its first appearance in Pokemon GO at the Pokemon GO Stadium event taking place in Yokohama, Japan later tonight.

A big TV screen at Yokohama Stadium was shown displaying a picture of Mewtwo. In addition, Twitter user Nick // Trainer Tips has confirmed Mewtwo is appearing inside the in-game Pokemon GO Stadium gym.

If all goes as planned, we should be seeing Mewtwo released into raid battles worldwide tomorrow morning. Get your Pokeballs ready!