OKLAHOMA CITY -- Oklahoma State guard Marcus Smart has declared for the NBA draft.

Smart told The Daily Oklahoman he has hired an agent, making official what was already a foregone conclusion. Smart, a sophomore, participated in senior night activities in Stillwater. He averaged 18 points, 5.9 rebounds and 4.8 assists per game this season.

Smart surprised some by returning to school after a strong freshman year. He got off to an excellent start this season, but slumped and began to lose his cool. On March 8, he shoved a Texas Tech fan and was suspended for three games. His Cowboys went through a seven-game losing streak, but his strong play late in the season pushed the Cowboys into the NCAA tournament, where they lost to Gonzaga in the Round of 64.