The Spurs and Tim Duncan have agreed to a three-year contract worth an undisclosed amount, according to Yahoo! Sports. The deal is "expected to be in the range" of KG's new deal with Boston -- three years and $36 million. Duncan averaged 15.4 points, 9.0 rebounds, 2.3 assists and 1.5 blocks last season, all setting or close to setting new career-lows. The Spurs stalwart sat out eight games last season, but has only missed an average of 4.7 games over the past seven seasons.