Didi's Cheng Wei: Chinese patriot who tamed Uber

By Paul Carsten BEIJING (Reuters) - Cheng Wei, 34, was once assistant to the head of a foot massage firm. Last week, his company Didi Chuxing bagged Uber's China business in a deal valuing his ride-hailing start-up at $35 billion - a second success in as many years in a grueling battle with a rival. Investors and Didi staff say Cheng has a cool head, a keen strategic eye and a lack of ego - all pivotal in taking on and beating Uber in a two-year, multi-billion-dollar scrap for China's competitiv