Sonny Bill Williams' daughter drops F-bomb while learning Maori

Sonny Bill Williams has posted an adorable clip of his daughter counting to five in Te Reo Māori - albeit with a cute "potty mouth" twist.

The All Blacks star welcomed a second daughter named Aisha in December, but it's Imaan, his first, that is racking up tens of thousands of Instagram likes today.

Williams is teaching the youngster how to speak Māori and she looks proud as can be - even though she does accidentally drop an F-bomb.

"I had to post this," Williams captions the post.

"Look how proud she is, lol. Imaan learning how to count in Maori! Please excuse the potty mouth, but she'll get there."

Williams had been taking a break from social media, but has started posting again as a proud family man.

The 31-year-old practicing Muslim is standing down from his Blues match against the Reds tomorrow night after suffering a knee injury.

Newshub.