Question: Silke Nowitzki (born July 12, 1974 in Würzburg, West Germany) is a German former international basketball player, she is the manager of her brother, Dirk Werner Nowitzki, a German professional basketball player, for the Dallas Mavericks of which organization?
Sentence (from "Dirk Nowitzki"): An alumnus of Röntgen Gymnasium and the DJK Würzburg basketball club, Nowitzki was chosen as the ninth pick in the 1998 NBA draft by the Milwaukee Bucks and immediately traded to the Mavericks, where he has played since.
Relevant evidence: No