Tennis star Venus Williams delighted fans - and an All Black - with some dance moves on the court today.

The 35-year-old called for a dance-off with winger Julian Savea as part of an exhibition match at the ASB Classic.

She was caught on camera doing the dance to American rapper Silento's Watch Me (Whip/Nae Nae) and pointing at Savea, who was standing next to Danish player Caroline Wozniacki. The pair were in fits of laughter.

The newly-married Savea was acting as a ballboy along with fellow All Blacks Nehe Milner-Skudder, Sam Cane, Joe Moody.

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They also had rallies against the tennis stars which included American player Bethanie Mattek-Sands.

All seven were seen posing for a selfie, taken by Williams.

The event at the ASB Tennis Centre in Auckland was filmed for an ASB promotional video.

Savea married Fatima Antaqi in Wellington two weeks ago.