Activision Blizzard, the company behind the popular video game franchise Call of Duty, has recently been used by professional gamers. The U.S.-based lawsuit claims that the company has been deliberately restricting competition in Call of Duty tournaments.

Microsoft, the famous tech giant and maker of the Xbox consoles, has recently acquired the video game company Activision Blizzard for $69 billion. With this acquisition, Microsoft now owns several video game franchises originally owned by Activision Blizzard, including popular titles such as Call of Duty, Overwatch, Warcraft, and Candy Crush.