MEMPHIS, Tenn. -- Grizzlies first-round draft pick Jarell Martin says he has a stress fracture in his foot that will prevent him from playing in any summer league games.

Martin and second-round pick Andrew Harrison were introduced Monday. Martin says he "overworked my body" throughout the pre-draft process.

Martin says: "We'll see when we get back how things are going, but overall I'm getting better. It is very tough, but we've got to look for later on down the road and do what's best."

The Grizzlies chose the 6-foot-10 Martin on Thursday with the 25th pick. Martin averaged 16.9 points and 9.2 rebounds for LSU this past season to rank third in the Southeastern Conference in both categories.

The Grizzlies are participating in the Orlando Pro Summer League from July 4-10.