MINNEAPOLIS (AP) University of Minnesota president Mark Yudof said school officials have to show the NCAA they are serious about cleaning up a men's basketball program rocked by academic cheating.

And he hopes a one-year, self-imposed ban on postseason play will impress the athletic governing body when it completes its own investigation months from now and hands out its own sanctions.

"We must demonstrate good faith and take meaningful action to repair the damage that has been done by others," Yudof said Tuesday in announcing his decision to ban postseason play. "It's the right thing to do."

The university also is placing the program on probation for an unspecified length of time. That will mean higher levels of reporting to the NCAA, such as periodic self-studies and compliance checks, Yudof said.

An investigation into the men's basketball program began in March after former tutor Jan Gangelhoff claimed she did more than 400 pieces of course work for at least 20 basketball players from 1993 to 1998.

Yudof said earlier that the investigation revealed "numerous, maybe even massive" instances of academic fraud. It has since widened to include accusations of improper payments and travel irregularities, and alleged sexual and other misconduct in the men's athletics department.

The president said the university and the NCAA could impose more sanctions after the final university report is completed, probably by Nov. 10. The report is expected to be made public about 10 days later.

NCAA spokeswoman Jane Jankowski said the organization would not comment specifically on the sanctions. But she said it is appropriate and common for schools to come up with their own punishments.

"Universities do frequently hand down their own penalties, and our (infractions) committee considers that and can adopt those sanctions, as well as add other penalties," she said.

The NCAA is supposed to have an infraction hearing next spring and could issue sanctions then or wait until the fall.

Yudof said he realized some basketball team members may feel the sanctions are unfair since no current players were involved in the cheating. But he added, "The NCAA has to worry about deterrents. I have to worry about deterrents in the future."

The postseason ban includes The National Invitation Tournament and the NCAA tournament, but not the Big Ten tournament.

Gangelhoff, the woman who sparked the investigation, left her job at a casino in Danbury, Wis., to listen to the university's news conference on her car radio.

"I think it's just the beginning," Gangelhoff said. "President Yudof must have enough information to realize these two things (sanctions) were going to happen regardless of whether or not he has the complete report in hand."

Yudof did not say whether jobs might be lost because of the findings in the investigation. "I don't want to presage what might come out in the report," he said.

Coach Clem Haskins resigned under pressure in June and accepted a $1.5 million buyout of his contract. He has said he had no knowledge of any academic cheating in the basketball program.

Dan Monson of Gonzaga University was hired to replace Haskins.

One reason to come out with sanctions now was to improve team morale, Yudof said. Monson agreed.

"For the staff and our team, it's the beginning of the end," Monson said.

Monson said he would be open with prospective players about the sanctions, which both he and Yudof acknowledged would hurt recruiting. However, if they end after one year, they may not have as great an impact, Monson said.

The NCAA holds a 64-team tournament at the end of every regular season to determine a national champion. The NIT is held for 32 teams that don't qualify for the NCAA tournament.

Minnesota has won the NIT twice and qualified for the NCAA Final Four in 1997.