He heard the whisper of linen on skin and her foot hit his knee under the table.

I must have hit my knee when I went down.

He hit his knee a sharp crack on the way down.

I stumbled to the ground, hitting my knee hard.

He jerked forward and hit his knee with a fist.

Davis suffered a concussion when his head hit Murphy's right knee.

The man hit his knee again and that was the last thing he remembered.

Maybe the door had caved in and hit his left knee.

Her blow hit the creature's knee with a satisfying crack, but if she'd done any damage it certainly didn't show.