United Kingdom, Nov. 5 -- A Vodafone and Three merger may happen, according to a Watchdog.

The Competition and Markets Authority (CMA) says it could be green-lit if the big mobile phone network companies make price promises for customers, as well as commitment for the UK's 5G rollout.

Stuart McIntosh, chairman of the CMA's inquiry group and leader of the panel investigating the merger, said on BBC Radio 4's 'Today' programme: "We believe this deal has the potential to be pro-competitive for the UK mobile sector if our concerns are addressed.

"We anticipate in the longer term that the significant commitment to upgrade the merged companies network over the next 10 years or so will ultimately create a competitive environment that will mai...