Kelvin Sampson's future at Indiana was in doubt Wednesday after the release of an NCAA report that says he committed five "major" violations.
According to the report, the coach and his assistants provided false and misleading information to university and NCAA officials.
The allegations stem from a phone-call scandal that occurred while Sampson was still under recruiting restrictions after a similar episode at Oklahoma. The NCAA ruled in May 2006, less than two months after Sampson, 52, took the Indiana job, that the Sooners coaches made 577 illegal calls between 2000 and 2004.
The NCAA banned Sampson from calling recruits and making off-campus visits for a year.
In October, however, new allegations surfaced after an internal review.
Five months after Sampson came off probation, an Indiana investigation found his staff made more than 100 impermissible calls and Sampson had participated in at least 10 three-way calls that were prohibited as part of the sanctions during his probationary period.
"It is regrettable, to say the least, that we are in this position, to respond to the allegations that have been made about several of our basketball coaches," athletic director Rick Greenspan said at a hastily arranged news conference.
"I'm personally, professionally and profoundly disappointed with even the hint of inappropriate behavior."
Sampson declined comment.