KANSAS CITY, Mo. -- Missouri basketball player Ricky Clemons was in fair condition in a Columbia hospital Sunday, two days after crashing on an all-terrain vehicle at the residence of the university president.

Clemons lost control of the ATV on a gravel driveway leading to president Elson Floyd's home on Friday night, university police said.

Clemons had been staying at Reality House, a work-release center, while serving a 60-day sentence imposed June 13 for beating up a woman and holding her against her will at his apartment.

Clemons was at the university president's home for a gathering, school spokesman David Russell said.

Officials at University Hospital would not release details of Clemons' injuries, but Wally Bley, an attorney who represented the player earlier this year, told the Columbia Missourian that Clemons had a severe concussion, punctured lung and broken ribs.

Bley did not immediately return a message seeking comment Sunday.

The cause of the crash was being investigated, but alcohol was not suspected as a factor, university police Capt. Brian Weimer said.

Michael Princivalli, security director at Reality House, said Clemons had served slightly less than half of his sentence and had caused no problems.

Clemons was permitted to leave from 8 a.m. to 5 p.m. on weekdays only to attend university classes and related activities and was not authorized to attend the party, Princivalli said.

Princivalli said the facility had been unable to make contact Friday with Clemons after he signed out to attend a study group.

Russell said Floyd did not know Clemons was violating the rules of his work-release program.

Clemons was suspended from competing during the 2003-2004 season but will still have a year of eligibility if he returns.