The 40-year-old footballer was sent off after he jumped the barrier to confront a Leek Town supporter.
The Football Association is waiting for the referee's report before deciding what Ricketts' punishment will be.
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NPL chairman Mark Harris told the 'BBC', "Gary reacted to a comment made by someone on the terraces. Other than the loss of control going into the crowd, there is no question any act of violence took place."
