USC freshman guard O.J. Mayo will declare for the NBA draft and will hire an agent soon, a school spokesperson said.
"I am so thankful for the fans and alumni at USC and around the nation that have been so supportive of me and my teammates throughout the season," Mayo said in a statement. "I'd like to express my appreciation to my coaches and teammates for their support in one of the most important decisions I've ever made."
Mayo is projected in the top 10 in the NBA lottery. Mayo led the Trojans in scoring with 20.7 points a game, 4.5 rebounds and 3.3 assists a game. Mayo helped lead the Trojans to a 21-12 overall record, 11-7 in the Pac-10.
USC lost to Kansas State in a 6 vs. 11 matchup in the NCAA first round in Omaha, Neb. Mayo told USC officials that he would stay in school for the rest of the spring semester.
"This comes as no surprise," coach Tim Floyd said in the statement. "We are appreciative of everything O.J. did for all of us the year he was with us. We wish him well. I have no doubt that he will be a great professional."
Andy Katz is a senior college basketball writer for ESPN.com.