The article discusses the UK’s competition watchdog, the Competition and Markets Authority (CMA), launching a probe into Microsoft’s $69 billion acquisition of video game company Activision Blizzard and Amazon’s $1.7 billion acquisition of iRobot, the maker of the Roomba vacuum cleaner. The CMA is concerned that these deals could result in a “substantial lessening of competition” within the UK markets. Microsoft’s acquisition of Activision Blizzard, if approved, would make it the world’s third-biggest gaming company by revenue. The CMA is investigating whether the deal could harm rivals, including through making Activision’s games exclusive to Microsoft’s platforms or by influencing its future releases. For Amazon’s iRobot deal, the CMA is examining whether it could negatively impact competition in the UK’s robot vacuum cleaner market. Both companies have five working days to submit proposals to address the CMA’s concerns, otherwise, the deals will face an in-depth investigation.