Caroline-Grace Brüssow (Photo: M-Net)
Announcing their son's arrival on the photo-sharing app, Caroline wrote: "Our little warrior Marcel Werner has finally made his appearance. We love you so much."
She also shared a photo from the delivery room, holding her son and her husband showing an overjoyed thumbs up!
The former Springbok flank is currently signed to the Northampton Saints, where he resides in England, while Caroline has been making a name for herself in the South African music scene.