article_snippet.sent: Jessica Ennis-Hill has begun communication with the IAAF in the aim of being rewarded with World Championship gold from 2011 after champion Tatyana Chernova was exposed as a drug cheat.
article_snippet.sent: – just 16 days before Tatyana Chernova beat Ennis by 129 points in the heptathlon in Daegu, South Korea.
article_snippet.sent: Ennis-Hil has written to the  IAAF to ask Tatyana Chernova Tatyana Chernova has been allowed to keep her world title .
article_snippet.sent: Jessica Ennis-Hill, then the defending world champion, had to settle for silver.
article_snippet.sent: The following year the Brit took gold in memorable scenes at London 2012, with Chernova third.
article_snippet.sent: Jessica Ennis-Hill praised the work done to uncover transgressions, such as the German documentary about institutionalised doping in Russia.
article_snippet.sent: Chernova celebrates the gold medal she took ahead of Jessica Ennis-Hill a year before the London Olympic games .
article_snippet.sent: Ennis Hill (right) says a silver made Ennis Hill (right) more determined to take gold at the Olympics, which Ennis Hill (right) did .
article_snippet.sent: Jessica Ennis trains in the adidas Climachill apparel range designed with advanced fabric for maximum cooling, and the adidas Ultra Boost trainers.
highlights_snippet.sent: Jessica Ennis-Hill  second to Tatyana Chernova in 2011 Championships .
  