Kelly Sotherton set to be upgraded to another Olympic bronze medal

• IOC disqualifies Tatyana Chernova over testing positive for steroid
• British heptathlete already promoted to bronze in 2008 4x400m relayBritain’s Kelly Sotherton is set to be upgraded to her third Olympic bronze medal. The development comes as a result of the International Olympic Committee disqualifying the Russian hepathlete Tatyana Chernova for testing positive for a steroid at the 2008 Games in Beijing.Chernova’s positive is only the latest in a long line from the IO