Cardiff City have spoken to the Premier League following claims important team details were leaked to Crystal Palace, reports BBC Sport. The Bluebirds allege Palace knew their line-up 24 hours before a recent match and have accused them of obtaining that information by underhand means.
Cardiff confirmed chairman Mehmet Dalman had been in touch with Premier League officials about the matter.
Palace beat Cardiff 3-0 last Saturday to leave Ole Gunnar Solskjaer's side 19th in the table.
Crystal Palace chairman Steve Parish declined to comment on the grounds that he did not want to give the accusations "oxygen".
Cardiff are gathering evidence to present to the Premier League, and have instigated disciplinary proceedings against two employees - neither of whom is a player.
