UFC bantamweight Jacqueline Cavalcanti sent her male sparring partner tumbling to the canvas after landing a perfectly timed knee.

The Brazilian-born Portuguese fighter is yet to score a finish under MMA's premier promotion.

All five (5-0) of her UFC victories have come over the distance, but that doesn't mean she can't generate a lot of force with her strikes.

In a video uploaded to social media, the 28-year-old can be seen moving around the cage with a significantly bigger man.

Cavalcanti throws a jab and a lead hook before landing a vicious knee as her sparring partner shoots in for a takedown.

The shot leaves the man flat on his back, and while he shakes his head and puts his hand up, he is clearly hurt.

A coach, left in disbelief by what he had just witnessed, asks Cavalcanti:

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