Amber Knight kicks grandma Diane Diamonds' ass in the more noteworthy of two scenes in this catfighting video.

Unfortunately, it's not much of a fight. Diamonds barely struggles against the obviously lighter Knight who hauls Diamonds from one grappling hold to another.

The next scene teams Knight with a pretty young girl named Precious. The two girls smile and smirk at each other, but Precious needs her pulse checked. Even Knights' energy cannot revive the comatose girl.

Knight does do her best here, but there just isn't much to work with as both her sparring partners put in less than a half-hearted effort.