https://www.reuters.com/article/us-sprint-corp-m-a-t-mobile-us-softbank/softbank-ceo-running-out-of-time-to-clinch-sprint-t-mobile-merger-idUSKBN1HI36L

SoftBank Group Corp CEO Masayoshi Son faces a closing window of opportunity to merge the Japanese company's debt-laden U.S. wireless subsidiary Sprint Corp with Deutsche Telekom's U.S. wireless unit, T-Mobile U.S. Inc.