Chelsea know they risk being slapped with a two transfer window ban.

The Daily Mail says Chelsea face being prohibited from swooping for new players amid a FIFA investigation into allegations they breached rules on signing under-18 foreign players.

Sources claim Chelsea can expect a minimum transfer embargo of two windows. If such a punishment is meted out before the end of the season, Chelsea are expected to appeal the ruling via the Court of Arbitration for Sport.

Such a move would delay the start of the transfer ban meaning the summer transfer window would be potentially be Chelsea's final opportunity to improve their squad for 12 months.