Iowa leading scorer Pierre Pierce, reportedly the subject of a police investigation, did not practice Tuesday and the university has not addressed his status for Saturday's game against Michigan State.
Pierce attorney Alfredo Parrish told The Associated Press that Pierce has agreed to cooperate with authorities. Iowa spokesman Phil Haddy would not comment on the report.
Charges against Pierce, who practiced Monday, have not been filed.
Pierce, 21, sat out the Hawkeyes' 2002-03 season after he was charged with third-degree sexual assault. He took it as a redshirt year and did not lose that year of eligibility. He returned to the team last season.
Pierce is averaging 17.8 points per game. He played in the Hawkeyes' overtime loss at Northwestern last Wednesday and scored 25 points in a victory at home Saturday against Indiana.
ESPN.com's Andy Katz contributed to this report. Information from The Associated Press was also used.