Britain's Olympic heptathlon champion Jessica Ennis-Hill is pregnant and will miss the Commonwealth Games in Glasgow in July, she said on Friday.
In a media statement she said: "I have some very unexpected but exciting news to share -- Andy and I are expecting a baby.
"We are completely overwhelmed with excitement and a degree of anxiety that I am sure all first time parents will relate to.
"My plans for 2014 have been completely turned upside down, but having had a couple of weeks to think about things from a career point of view I am 100 per cent set on returning to full time athletics once our baby is born and go for a second gold medal at the Rio Olympics in 2016 -- that challenge really excites me."
Ennis Hill won the Olympic title in London in 2012 to add to her world crown in 2009 and her European title in 2010.
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