Japanese telecoms group Softbank has said it will sell at least US$7.9bn worth of shares in Chinese e-commerce giant Alibaba, equivalent to a 4.2% stake, to reduce its interest-bearing debt, which stood at Y11.9trn (US$108bn) at the end of March. The announcement comes as Softbank has been struggling to revive its loss-making US mobile operator Sprint since acquiring it in 2013. […]