Anderson has averaged seven points while developing into a 3-point shooter off the bench for the Spurs. The former Oklahoma State star scored seven points Wednesday night in a win over the Los Angeles Clippers.
Anderson has made 10-of-20 from behind the 3-point line and was averaging nearly 18 minutes a game. He is scheduled for surgery next week.
Anderson's absence will likely mean a larger role for rookie Gary Neal, who is averaging 6.7 points and also has 3-point range.