Their manager has branded them an "embarrassment"
Preston's Irish striker Eoin Doyle and fellow forward Jermaine Beckford could be facing a reprimand after getting sent off for fighting each other during the club's 2-1 defeat to Sheffield Wednesday in the Championship.
The duo squared up to each other in heated scenes that saw the referee show them red cards.
They are both likely to receive three match bans as a result of the incident.
Preston manager Simon Grayson, who hinted that there will be in-house punishments on top of any FA action, branded the players' actions an "embarrassment" and commented that, "You expect it in the playground between four or five-year-olds.