Mike Fisher reports that Nowitzki has decided not to participate in the FIBA World Championship tournament this summer.
"I have signed a new contract with the Dallas Mavericks,'' Dirk said in making the announcement. "We have a new team with new conditions and I want to set my focus on the next NBA season this summer."
The tournament does not impact Olympic qualifying, and Nowitzki has said previously that he will participate next summer, when results will determine Germany's qualification for the 2012 London Olympics.