Ohio State athletics officials scheduled a 7 p.m. news conference on Tuesday to address allegations that Tressel knew some of his players were selling memorabilia months before they were punished.
President E. Gordon Gee, Athletic Director Gene Smith and Tressel were scheduled to discuss the findings of a Yahoo! Sports report that alleges Tressel knew about violations involving some of his players months before they were reported by the school.
Sources told 10TV News that Tressel addressed his team about the report before their Tuesday morning off-season workout.
The Yahoo report, published on Monday night, said that Tressel received information that some of his players sold items to Edward Rife, the owner of Fine Line Ink Tattoos in Columbus, as early as April 2010.
The information contradicts Ohio State's statement that Tressel was not aware of the violations until December, when the university claimed that it was informed of the situation by the local U.S. Attorney's Office.
10 Investigates has learned trouble for the Buckeyes started at a Westerville area home last year.
BLOG: What We Know | WEB EXTRAS: Ohio State Self-Reports To NCAA Case Involving Jim Tressel | Read Yahoo! Sports Investigation | SPECIAL SECTION: Ohio State Football
Multiple sources confirmed that federal and local agents raided the home, hoping to find evidence of drug crimes by Rife.
When agents raided his home on April 1, they found Buckeye memorabilia, 10 Investigates' Paul Aker reported.
Rife has not been charged with any crime.
If Tressel knew about the connection in April, he should have told the National Collegiate Athletic Association.
In December, Tressel said the responsibility for educating players about NCAA rules rests with the coaching staff.
"As coaches, it's our job to make sure the policies are crystal clear," Tressel said in December.
In December, the university announced it was suspending quarterback Terrelle Pryor, running back Daniel "Boom" Herron, wide receiver DeVier Posey, defensive end Solomon Thomas and offensive lineman Mike Adams for the first five games of the 2011 season.
If Tressel knew of the violations and did not report them immediately to the school's athletic director or the university's compliance office, Tressel could be fired or face NCAA sanctions and penalties, including forfeiting the entire 2010 football season.
The NCAA will make the final decision on any punishment Tressel will receive. Sources told 10TV Sports that the university will recommend Tressel serve a two-game suspension at the start of the 2011-12 season.
Stay with 10TV News and 10TV.com for continuing Ohio State football coverage.
March 7, 2011:
Report: Tressel Knew About Violations Last April
December 30, 2010: NCAA Rebuts Critics Of Ruling On Ohio State Violations
December 28, 2010: Suspended Ohio State Football Players Publicly Apologize
December 23, 2010: Pryor, 5 Others, Face Sanctions For NCAA Violations
December 22, 2010: Ohio State Probing Possible NCAA Violations By Football Players