Watch out tennis referees!
Tennis champ and entrepreneur Serena Williams has switched out her racquet for a pair of boxing gloves, taking a lesson in "hitting the bag" from none other than Mike Tyson.
Sharing a photo of the pair on social media, fists raised for combat, Tyson wrote: "I don’t want to get in the ring with this GOAT (greatest of all time). Much love and respect."
Tyson then shared a video of their lesson together, which took place in Florida, describing Williams as having "some power" with her swings.
Sports fans were quick to comment on the clip, with many remarking at Williams' clear strength (which should surprise absolutely nobody).
"A. I definitely will never ever want to take a punch from MikeTyson and B. I just found out I will never ever want to take a punch from Serena."
When he's not being an icon training an icon (which is in itself iconic), Tyson runs a podcast called Hot Boxin, in which he has "powerful conversations with fascinating minds in a studio full of smoke."
What's with the smoke? Well, that might have something to do with his cannabis business, Tyson Ranch.