I hid my mum in my Harvard dorm

As a teenager Chatri Sityodtong's family lost all its money in Thailand. But Chatri won a place at Harvard University, and took his homeless Mum to live with him in his dorm room. He set out on a business career that has seen him sell his Silicon Valley start-up company for millions. Now aged 45, his latest venture is a mixed martial arts tournament which is televised across Asia, called the 'One Championship'. (Picture credit: ONE Championship.)