Usain Bolt reveals he's expecting a child with his girlfriend Kasi Bennett (photos)

Usain Bolt, 33, is about to be a dad as his girlfriend, Kasi Bennett is expecting their first child together.

The Olympic gold medal winner announced the news on Instagram.

He shared a photo of Kasi cradling her baby bump and wrote: "I just want to say a KING or QUEEN is about to be HERE. @kasi.b."

Kasi also shared photos of herself posing on a yacht, in a red dress, surrounded by balloons and wrote: "Our biggest blessing. Our greatest celebration…"

In another, she wrote: "Our golden child. Coming soon…"