Clay (known as Max in Europe) is a character of Mario Tennis: Power Tour on the Game Boy Advance. He is the hero of the game and is fourteen years old. His Partner is Ace and he is described as being a power player. When selected as a character for Mario Tennis: Power Tour he is described as a rascal, while Ace is a tomboy. He seems to be more calm than Ace is. Clay is the only character in the game (besides the Mario crew) who has his own voice. He also bears similar appearance traits to his Mario Golf: Advance Tour counterpart, Neil.

Community content is available under CC-BY-SA unless otherwise noted.