When two fighters attempt to grab each other simultaneously, a grab parry occurs. This is like a “tech throw” in other fighting games, with both fighters returned to a neutral state and neither taking damage. This can’t be used on reaction late like in many other fighting games, though, since the grabs have to clash. If it happens, you know both players have gone for a throw at the same time. Based on the timing, this might be useful information. For instance, an aggressor might move in again in a similar scenario but roll through a defender instead of trying for the grab; if their opponent grabs with the same timing as before, it’ll whiff and expose their back.