Manchester United defender Rio Ferdinand could miss the Carling Cup final.
The Daily Mail says United have jeopardised Ferdinand's hopes of playing in the Carling Cup final by launching an appeal against the defender's suspension.
The club are contesting the additional one-game ban imposed on top of a three-match suspension for striking Hull City's Craig Fagan.
A disciplinary commission imposed the extra game last week after deciding the defender was guilty of a frivolous challenge to an FA charge of violent conduct.
The appeal board has the power to rescind the additional ban, meaning Ferdinand would be available for the Premier League game against Everton a fortnight on Saturday.
However, it can also increase the punishment by another game, ruling him out of the final against Aston Villa on February 28.