SARRA Hoy has marked the 40th birthday of her cycling legend hubbie by posting an adorable snap of Sir Chris with their son.
On Wednesday the Olympic gold medallist reached the milestone age, and fans and followers took to social media to wish him many happy returns.
His wife, Sarra, also publicly wished him a happy birthday, and shared a photograph of her husband with 17-month-old son Callum.
The delightful pic shows Sir Chris walking through a garden, reaching down to hold his toddler’s hand.
The pair appear to be wearing similar clothes, with Sir Chris in a grey t-shirt and his son sporting a grey hoodie.
She captioned the snap: “Like father like son! Wishing @ChrisHoy a very happy happy (*cough* 40th *cough*) birthday.”
Delighted fans and friends commented on the picture, showing their surprise at how fast both boys were growing up.
Former First Minister Lord McConnell wrote: “Congratulations Chris. Life begins…and all that.”
Welsh rugby player George North said: “Happy birthday big Chris. Looks like the wee man is growing quickly!”
One follower, Joy Petrie, joked: “21 again…with 19 years experience.”
Sarra later pointed out that her husband shares a birthday with a range of other athletes, including Mo Farah, Sir Steve Redgrave and Jason Kenny and Joe Calzaghe.
After wishing them all a happy birthday, a follower asked: “Is there some real Olympic pedigree born on the 23 March…how many golds between them?”
Sir Chris’ only child, Callum, was born 11 weeks early in October 2014 weighing only two pounds and two ounces.
He had to spend 140 days in hospital before he was allowed to go home, but has since grown into a healthy baby.
In the past, fans have stated that Sir Chris’ son is the “spitting image” of his father, after the Olympian revealed Callum’s first ever passport photo.
Sir Chris, who retired in 2013, has previously said that having a son changed his priorities in life, and that there was now “always something to worry about”.