Dirk Nowitzki has been assured by Mark Cuban that he will not be traded by the Dallas Mavericks.

Nowitzki owns a no-trade clause that gives him the right to veto any proposed trade.

"I told Dirk we're not going to trade him. He was happy. I think," Cuban said, laughing. "I wanted to make it clear to him. I said, 'We're in this through thick and thin,' and so there's no way I would trade him, no matter what."

Nowitzki has expressed frustration of the Mavericks' inability to acquire a superstar in the offseason in a strategy that led the team to let Tyson Chandler join the Knicks last season.

"When Dirk has something on this mind, he's never shy," Cuban said. "If he's going to tell you what he said in the media, you don't think he's going to dump on me? I mean, I've got texts from every single year and emails from every single year. Dirk wants to get it out of his system and then at the end of the email or text it's like, `Don't you worry. I'm a warrior and I'm going to lead these guys and we're going to get it rolling."