https://www.cnbc.com/2017/10/16/t-mobile-sprint-aim-to-announce-merger-without-asset-divestitures-sources.html

T-Mobile U.S. and Sprint plan to announce a merger agreement without any immediate asset sales, as they seek to preserve as much of their spectrum holdings and cost synergies as they can before regulators ask for concessions, according to people familiar with the matter.

While it is common for companies not to unveil divestitures during merger announcements, T-Mobile's and Sprint's approach shows that the companies plan to enter what could be challenging negotiations with U.S. antitrust and telecommunications regulators without having made prior concessions.