USC Coach Steve Sarkisian on Tuesday said his behavior at a booster event last weekend resulted from mixing alcohol and an unspecified medication, and that he would seek treatment to find out if he has a drinking problem.

"There are things we're going to work on for me moving forward," Sarkisian said during a news conference before practice. "But it's a hard time."

Sarkisian had slurred his words, used an expletive and said several opponents "suck" during the annual "Salute to Troy" kickoff event on Saturday.

He appeared drained as the Trojans resumed practice for their Sept. 5 opener against Arkansas State, and apologized again for his behavior.

"I took medication, I mixed it with alcohol, not a lot, unfortunately, and I responded in a way that was not acceptable."

Sarkisian declined to say what type of medication he took.

Rutgers investigation

Rutgers is investigating whether football coach Kyle Flood violated school or NCAA rules by contacting a faculty member about the academic status of a player.

NJ.com first reported Tuesday that Rutgers University's office of general counsel is investigating the severity of the alleged violation. The university confirmed its office of ethics had the matter brought to its attention about a week ago and that it has initiated an investigation.

"Nobody told me that there is an investigation at this point, but I'll cooperate with whatever process the university has," Flood said after practice Tuesday.

Earlier in the day Flood said the tone of the NJ.com story, which cited unidentified sources, was disappointing.

"I think that that article not only insults my integrity but it insults the integrity of our faculty," he said.

Flood is entering his fourth season as coach of the Scarlet Knights and is 23-16 with three bowl appearances.

Meanwhile, Rutgers suspended star receiver Leonte Carroo and quarterback Chris Laviano, along with three other players, for the first half of its season opener against Norfolk State for a curfew violation.

Purdue selects a QB

Junior quarterback Austin Appleby won the starting job at Purdue. Third-year coach Darrell Hazell made the announcement after practice Tuesday, selecting Appleby over redshirt freshman David Blough. Appleby started the Boilermakers' final seven games last season, but was challenged by Blough during spring practice and fall camp.

So does Spurrier

Sophomore Connor Mitch will start at quarterback for South Carolina when it opens the season on Sept. 3 against North Carolina. Coach Steve Spurrier announced the decision Tuesday, ending a four-way race.

Mitch was the favorite coming into fall practice, but Spurrier has said Mitch struggled during scrimmages. The veteran coach said Mitch played his way past junior Perry Orth, redshirt freshman Michael Scarnnechia and true freshman Lorenzo Nunez.

Strange timing

Arizona State coach Todd Graham said his son is pursuing an "exciting opportunity" but did not offer any other details on why Bo Graham left the program less than two weeks before ASU's first game.

Bo Graham, Arizona State's running backs coach for three seasons, resigned Monday due to personal reasons. Todd Graham thanked his son for the time they worked together and wished him the best in his new job, though he would not say what the job was.