Winning an Olympic gold should be a moment of great joy for any athlete at London 2012.

But for Chinese diver Wu Minxia securing her golden hat-trick on Sunday at the Aquatic Centre in east London was followed by shock and sadness.

Straight after a triumph in the women's Synchronised 3m Springboard that made her a legend in her sport, the 26-year-old's family decided it was the right time to tell her a devastating family secret