Jessica Ennis-Hill second to Tatyana Chernova in 2009 Championships . Chernova has since been found to have failed a test in 2011 . She has been banned but her 2009 World Championship title still remains .
Jessica Ennis-Hill second to Tatyana Chernova in 2011 Championships . Chernova has since been found to have failed a test in 2009 . She has been banned but her 2011 World Championship title still remains .