The pair squared up to each other yesterday (7 August) before David let Rita pummel his abs as hard as she could.
David - aka The Haymaker - didn't even flinch though, proving how toned and defined his stomach muscles are. Phwoar!
In a video recorded while they were in the ring, David says: "I'm here with my new sparring partner. I'm gonna check her out, test her out - here's Rita Ora."
He then turns to Rita, who is wearing a bright blue pair of boxing gloves, and tells her: "Show us what you've got, girl!"
As pop star Rita squeals and spars with all her might, David goads: "Come on, come on!"
Wow, that man is ripped!
Watch David's video of his training session with Rita here: