COLUMBUS, Ohio -- Ohio State's director of compliance is reviewing at least 50 car sales to Buckeyes athletes and relatives to see if they met NCAA rules, The Columbus Dispatch reported Saturday.

Meanwhile, as part of his punishment for not revealing his knowledge of his players' NCAA violations, Ohio State coach Jim Tressel will attend a five-day compliance seminar in June in Tampa, Fla. Ohio State spokesman Jim Lynch confirmed Saturday that Tressel would take part in the NCAA-sponsored event June 6-10 at a resort hotel on the waterfront.

The Dispatch reported that a car salesman who received game passes from Ohio State athletes handled many of the deals at two different dealerships. Ohio State has since taken the salesman, Aaron Kniffin, off the pass list.

Athletes are prevented from receiving special deals not available to other students. They are not permitted to trade autographs for discounts. Both dealerships display signed Ohio State memorabilia in their showrooms.

However, one case of a vehicle sale to a Buckeyes player, earlier reported as having a purchase price of $0, was clarified by the Dispatch on Wednesday.

It was reported earlier that according to documents, a Chrysler 300C with fewer than 20,000 miles was sold to then-Ohio State linebacker Thaddeus Gibson for a purchase price of $0. At the time, Gibson said he did not know why the title showed a zero for the purchase price and said he was still paying for the car.

But the newspaper reported Wednesday that a previous title on the vehicle listed the purchase price as $13,700 for a sale dated June 27, 2007 and financed through Huntington National Bank. The title listing the purchase price as $0 was dated March 6, 2008 and listed the same bank as the lender.

State law requires dealers to report accurate information about all car sales for tax purposes.

School officials have seen no evidence of players getting special treatment in vehicle sales, Douglas Archie, associate athletic director for compliance, said in a statement Saturday.