Olympic legend, Usain Bolt, has shared pictures of his first child, Olympia, on Twitter, just as he wished his partner, Kasi Bennett happy birthday.

This is the first time he has revealed her name or shared photos of the new arrival, which they welcomed on May 14.

The 11-time world champion described their experience as parents as a new chapter together.

“I want to wish my gf @kasi__b a happy birthday. I get to spend ur special day with u. I want nothing but happiness for u & will continue to doing my best keeping a smile on ur face. We have started a new chapter together with our daughter Olympia Lightning Bolt ⚡️🎉🎊💫” He tweeted.

The pair have been dating since 2014 but only went public in 2016, just before he retired from athletics after suffering a hamstring injury at the 2017 world championships.

Bolt is the only man in history to win gold at three successive Olympics, doing so in 2008, 2012 and 2016.

He retired after the 2017 World Championships in London after suffered a hamstring injury in what was the final race of his career.