Slice accelerations have been banned in online tournament play, beginning at the US Open. This is how it will be put into effect:
1. Everyone is encouraged to record their matches (or if that is not possible, take screenshots of the slice acceleration in replay). Without proof, nothing will be done.
2. Accidental slice accelerations can happen, so this rule will be lenient about that to a certain extent, but if multiple slice accelerations are being used on important points (like break points) that will be overrided.
3. The punishment for breaking this rule is automatically losing the match you broke the rule in and forfeiting all ranking points won for the current tournament.