Hearthstone already has a loyal fanbase. So why can't they play the game?
European sensation Soren "Bjergsen" Bjerg of Denmark has some big shoes to fill in the world of eSports.
The Korean Starcraft 2 pro known as "Dear" has won two tournaments in barely over a week.
Tomorrow's Fall Invitational pits some of the best pro-gaming teams in the world against each other.
The public still can't play Hearthstone. But that hasn't stopped Blizzard from launching the game's first professional tournament.