Duncan carries Spurs to 104-92 win over CelticsBOSTON, MA - FEBRUARY 12: Tim Duncan #21 of the San Antonio Spurs handles the ball against Joel Anthony #50 of the Boston Celtics on February 12, 2014 at the TD Garden in Boston, Massachusetts. (Photo by Brian Babineau/NBAE via Getty Images)
Boris Diaw added 18 points and Duncan grabbed nine rebounds to lead the Spurs to their fifth win in seven games.
Rajon Rondo led Boston with 16 points and Kris Humphries and rookie Kelly Olynyk had 15 apiece. The Celtics fell to 4-18 against Western Conference teams.
Boston was minus guard Avery Bradley, who was sidelined with a sprained right ankle.