Tennis ace Serena Williams has been learning how to box from world champion Mike Tyson.

The two sporting legends are both attending Williams' coach, Patrick Mouratoglou's, pre-season training camp where the tennis star has also been learning choreographed dance routines with Coco Gauff.

Tyson uploaded a photo of the pair and a video of Williams hitting a punch bag. He captioned the shot of them together: "I wouldn't want to get in the ring with this GOAT... much love and respect."

In the video you see the retired boxer coaching Williams and Tyson said the 38-year-old 'has some power.'

The tennis star is training for the 2020 season which begins at the WTA Auckland Open on January 6.