Bucks general manager John Hammond said Wednesday that the team has "major concerns" about center Andrew Bogut representing Australia in the World Championships this summer.

Bogut is under pressure from his home country to play, but Milwaukee is concerned about his health and the recent five-year, $60 million investment they made in him.

"We are going to support Andrew as he goes through this process," Hammond said Wednesday night. "But we do have concerns.

"We've made a long-term commitment to Andrew and obviously he's made a commitment back to us. We appreciate what he's done for us at this point in his career and think he's only going to get better and better.

"We want to continue to monitor his back and make sure he stays healthy."