Defendant presented plaintiff's deposition to the court as an evidence but did not disclose plaintiff's disclosure requests. Defendant futher filed a motion for sanctions against plaintiff. Now, plaintiff has filed a reply to the defendant's motion to sanctions, plaintiff also filed a motion to reset trial date which was granted by judge, a motion for contempt and/or sanctions and a motion for sanctions against defendant. Since, defendant intentionally misled the court by not providing a very important evidence and presenting the least important evidence. Plaintiff could not prove his case without defendant's disclosure. What penalties might be posed against the defendant and his attorney?