Rugby Football League investigate accusations of discrimination in Doncaster RLFC and Swinton Lions clash
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Swinton are also understood to have launched an internal investigation into the claims levelled at their employee, who has not been named.
The club did not respond to request for comment.
If found guilty, punishments range from a warning through to fines, suspensions, and/or a stadium ban.
An RFL spokesperson said: “The RFL have been made aware of allegations and are currently investigating the matter.”
No timescale on the investigation has been given, meaning it could still be ongoing in the event Doncaster beat Rochdale this weekend and play Swinton next Sunday for a spot in the Betfred Championship.
Doncaster declined to comment.
Swinton won the match 32-12.