Dame Jessica Ennis-Hill reveals she is pregnant with second child

Dame Jessica Ennis-Hill has revealed she is pregnant with her second baby.

Ennis-Hill, who announced her retirement in October last year after taking Olympic heptathlon silver in Rio, posted a photograph of her two-year-old son Reggie holding a book entitled "I'm Going to be a Big Brother!" on her Instagram account.

The accompanying message read: "Someone's going to be a big brother. Another little Ennis-Hill on the way. So happy."

Jessica Ennis-Hill retired in October last year. Credit: PA

Ennis-Hill, now 31, and husband Andy Hill became parents for the first time in July 2014 when Reggie was born, but she returned to athletics the following year and won World Championship gold in Beijing before only just failing to defend her Olympic title the following summer.

She was made a Dame in this year's New Year's Honours List.