When standing it is a technique used to take an opponent to the ground by knocking their legs out from under them, so is classed as a throw or takedown.
A sweep, when referred to in the context of ground fighting, is a technique used to transition from a neutral or inferior position to a dominant position, such as a practitioner moving from in an opponent's guard to full mount, hence the alternative term 'reversal' as the dominance of positions have been reversed.
The main characteristic of the push sweep is the practitioner pushing the opponent's knee out from under them with their foot, when the practitioner has the opponent in their open guard.
This additional detail is required when the opponent keeps a wide base to prevent the scissor sweep.
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