(Telecompaper) The merger between T-Mobile US and Sprint is set to get its green light, the Wall Street Journal reported, citing sources close to the matter. The decision will be made public by a federal judge on 11 February. No word is yet out on if the approval will be conditional or not. The parties have been notified of the imminent ruling, the sources said. The new T-Mobile will have more than 90 million customers in the US and work on overtaking market leaders AT&T and Verizon.