Microsoft is facing yet another obstacle to seeing through its $69 billion acquisition of Activision Blizzard. Reuters reports that the EU antitrust watchdog is ready to hit Microsoft with a warning ahead of the April 11th deadline it set to decide about the deal.

Sony, a major objector of Microsoft’s Activision Blizzard acquisition, said Call of Duty offer was “inadequate on many levels” before a new report emerged that Sony’s happy with a new 10-year contract proposition to keep Call of Duty on PlayStation.

According to Reuters, the EU is preparing a “charge sheet” document that will be sent to Microsoft “in the coming weeks” about its concerns on the deal.

In a statement, Microsoft said: “We’re continuing to work with the European Commission to address any marketplace concerns. Our goal is to bring more games to more people, and this deal will further that goal.”

Regulators in Brazil, Saudi Arabia, and Serbia have approved the deal, but US and UK regulators have concerns over it, with the U.S. Federal Trade Commission taking the issue to court to block the deal.