Sean Plott

Sean Saintmichael Plott (born June 27, 1986), better known as Day[9], is an American esports commentator, player, event host, and game designer. Plott is best known for his contributions in the professional StarCraft scene, where he regularly appeared first as a player and later as a commentator and host at various tournaments for the game for many years. He has also played other competitive games such as Magic: The Gathering, Hearthstone, and Dota 2. For the latter, Plott co-hosted The International 2017, the game's premier tournament.