FILE - In this Dec. 18, 2016, file photo, San Antonio Spurs' Tim Duncan listens while special guests speak about him during his jersey retirement ceremony, in San Antonio. The Spurs have watched franchises in Cleveland, Los Angeles, Boston, Chicago and elsewhere bottom out after losing a foundational star. Their mission has been to avoid a similar fate after Tim Duncan’s retirement. Not only have they not bottomed out, they enter the Western Conference playoffs eyeing a sixth championship.(AP Photo/Darren Abate, File)