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The 39-year-old has suggested that he’ll retire after the 2017-18 season<p>The Dallas Mavericks declined Dirk Nowitzki’s $25 million contract option for the 2017-18 season earlier this summer, but there was never any doubt as to whether the 39-year-old future Hall of Famer was going to return to …

Read more at CBS Sports: http://www.cbssports.com/nba/news/report-mavs-dirk-nowitzki-finalizing-deal-for-what-could-be-his-final-nba-season/