消息來源：
https://twitter.com/TheSteinLine/status/1021410164447072256
Dirk Nowitzki will today sign a one-year, $5 million deal with the Dallas
Mavericks that sets him up for a record-setting 21st consective season with
the same team, according to league sources.
Nowitzki 將會在今天與獨行俠隊正式完成續約
雙方預計簽下一年500萬元的合約
短評或心得：
德佬為單一球隊效力21個賽季，也會成為NBA史上的新紀錄，超越原先由Kobe所保持的20季