Sir Chris Hoy tweets first image of baby son Callum

Six-time Olympic champion Sir Chris Hoy has given fans a first glimpse of his baby son Callum.

The first-time father posted a photo on his official Twitter account of the youngster, who remains in hospital due to his premature arrival.

Hoy's wife Sarra gave birth to the baby in October, 11 weeks prior to her due date.

Alongside the photo, Hoy wrote: "Thanks for all your messages for Callum. He's doing well so far and says hi!"

Thanks for all your messages for Callum. He's doing well so far and says hi! pic.twitter.com/7wXVNybYmU

— Chris Hoy (@chrishoy) November 6, 2014