LONDON, Nov 5 (Reuters) - The merger between Vodafone ( VOD )

and Hutchison's Three UK is likely to be given

the go ahead as investment commitments overcome concerns over

competition, a British regulator said in a provisional ruling on

Tuesday.

The Competition and Markets Authority said the deal had "the

potential to be pro-competitive for the UK mobile sector" after

the two groups set out plans to protect consumer pricing, and to

boost network investment.