Reuters reports Grab, which ranks as Uber’s biggest rival in Southeast Asia, is raising as much as $2 billion in funding from Japan’s SoftBank Group and China's human cloud firm Didi Chuxing. The deal, which could close in the next few weeks, would value Singapore-based Grab at more than $5 billion, The Wall Street Journal reported, citing people familiar with the matter. Grab, which operates its ride-hailing platform in 55 cities across seven countries.