Duncan and Parker were listed in San Antonio's starting lineup, and Ginobili was expected to come off the bench for the Spurs in their final game before the All-Star break.
Duncan has missed eight of the last nine games with a sore left knee, and Parker didn't play Monday night against Chicago because of swelling in his right knee. Ginobili has missed nine of the last 13 with a tight left hamstring. The three will play together for the first time since Jan. 13.
San Antonio has won 13 of 14 and has the best record in the NBA.
Swingman Stephen Jackson will miss his second straight game because of personal reasons.