Marquette forward Henry Ellenson, one of the top freshmen in college basketball this past season, will declare for the NBA draft and is expected to sign with an agent, a source close to the situation told ESPN.

The 6-foot-10, 245-pound Ellenson averaged 17 points and 9.7 rebounds per game this past season for a Marquette team that finished 20-13. He was the Big East freshman of the year and a first-team all-conference choice.

Ellenson is projected as the No. 5 selection in Chad Ford's most recent mock draft.