Mat backbreaker

 is a type of Backbreaker.

Description
The attacking wrestler stands behind an opponent, grabbing them by their head to seemingly perform a standard mat slam. However, as the wrestler pulls the opponent backwards down to the mat, the wrestler kneels down, driving the opponent's back into the wrestler's exposed knee. If the wrestler uses the opponent's hair to pull them back onto the wrestler's exposed knee it is known as a hair-pull backbreaker.