Johnny Test - Season 4, Episode 18b: Johnny's Big Sister Smackdown
Johnny tries to get his sisters Susan and Mary to box for his amusement when they argue about who gets to date the neighbor boy Gil.
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Danny Phantom - Season 3 Episode 5: Girl's Night Out
Sam unsuccessfully fights a much larger female boxer. One punch K.O. in a POV shot.
Triumph: Find The One For Every You (Commercial)
https://www.youtube.com/watch?v=OVtdvLT62E0 An animated bra ad featuring the main female in boxing attire.