Earlier today, German business newspaper Handelsblatt reported that Deutsche Telekom is currently preparing a plan for a merger between Sprint and T-Mobile US. This is not the first that we've heard of T-Mobile possibly merging with another US carrier, both AT&T and Sprint have been reportedly trying to merge with T-Mobile at some point, though the first time we heard rumors of a merger with Sprint and T-Mobile, John Legere denied the claims. The report also details that T-Mobile would be taking control of Sprint as to keep T-Mobile's current aggressive/competitive marketing strategy...
Source: http://www.gsmarena.com/deusche_telekom_reportedly_plans_to_merge_tmobile_and_sprint_-news-25718.php
