Microsoft and British regulators have sought more time from a court as the US tech company uses a rare second chance to overcome opposition to its 69 billion dollar (£52.7 billion) bid for video game maker Activision Blizzard.

Lawyers for Microsoft and the Competition and Markets Authority tried to persuade a judge to delay a hearing planned after the CMA rejected the deal and Microsoft appealed.

The regulator later gave Microsoft more time to make its case for the blockbuster purchase of the Call Of Duty game maker to go through.

The deal has already won approval in the European Union and a slew of countries but has faced opposition from antitrust regulators in Britain and the United States.

The UK blocked the deal on concerns that it would stifle competition in the small but fast-growing cloud gaming market.

Its position, however, appears to be softening.

The watchdog said last week that it is giving itself six extra weeks to consider Microsoft’s submission outlining new developments and “special reasons” why the deal should be approved.

Both sides had said they were asking the Competition Appeal Tribunal for the delay after a court in the US thwarted the Federal Trade Commission’s efforts to stop the acquisition.

Judge Marcus Smith indicated he would scrutinise the “troubling application” to delay the appeal after an earlier request was denied.

Judge Smith said he wanted assurances from the Competition and Markets Authority that the FTC’s failure to block the deal played no part in its reasoning for requesting a delay to give Microsoft another chance.

Another sign that momentum for the deal is growing came on Sunday when Microsoft said it has signed a 10-year agreement with Sony to keep the popular Call Of Duty video game series on the PlayStation console if the merger goes through.

The Call Of Duty series of games, made by Activision, has been a flashpoint in the battle over the acquisition.

Sony has fiercely resisted the deal by Microsoft, which makes the Xbox console, over worries that it would lose access to Call Of Duty.

As it tried to win over regulators around the world, Microsoft has been signing provisional deals to license Activision titles such as Call Of Duty to Nintendo and some cloud gaming providers.

Sony had been holding out until now.