The Houston Rockets have decided not to pick up the fourth year option on the contract of Bostjan Nachbar, leaving the third-year forward determined to "prove to everybody that they made a wrong decision."

The Rockets had the opportunity to keep Nachbar, the 15th overall pick out of the 2002 NBA draft, under contract for another season for $2.29 million but now he will become an unrestricted free agent with the Rockets owning his bird rights.

"It really is more about cap control," Rockets GM Carroll Dawson said. "It could be to his advantage. We love Boki. I think he will have opportunities right now to play well. If he has a great year it might cost us more when he becomes a free agent. He's playing well. He's got a chance to do very well. But right now, cap control is very valuable."

"Obviously, I feel a little disappointed," Nachbar said. "I was hoping to get an extension on the contract. It was a hard month for me. It was always on my mind. I wish they told me a month ago. But I'm not deeply disappointed so that I won't be focused. It's a really important week for us. That's what's on my mind. All that about the contract is behind me now.

"I didn't have a good preseason. I think I was playing too much to get the extension."