The England and Wales Cricket Board could ask Pakistan to pay up to $US1.5million for losses resulting from the cancellation of the fifth day of the controversial 'ball tampering' Test at the Oval.
The Sunday Times reported that the Pakistan Cricket Board should receive formal notification of the move over the next few days.
Spectators who attended the fourth day when Pakistan staged its sit-in have been refunded 40 percent of their ticket price and the entire amount of tickets has been repaid to those with fifth day tickets.
Pakistan feels that umpire Darrell Hair, who made the ball tampering allegation, was at the centre of the controversy and not the Pakistan team.
Pakistan's defence will be based on asking the International Cricket Council to charge Hair with bringing the game into disrepute.
If that occurred the liaibility for repayment would be with the ICC.
Pakistan's legal representatives have said the situation will not be left to lie.
Lawyer Waseem Khokhar said: "There is the strength and resolve to see that the right course of action is taken.
"There is an immense amount of hurt and sense of grievance," he told CricInfo.com.
Pakistan captain Inzamam-ul-Haq, who was not guilty of ball-tampering charges, said he would not take legal action against Hair.
