Rondo has been sidelined since the preseason with a core muscle injury that required surgery. His rehabilitation was expected to take four to six weeks.
Rondo, who is entering his 12th NBA season out of Kentucky, was acquired as a free agent this offseason.
During training camp, he was expected to start in the backcourt alongside Jrue Holiday.
Rondo spent his first eight-plus seasons with Boston and also played with Dallas, Sacramento and Chicago, averaging 10.7 points, 8.5 assists, 4.9 rebounds and 1.8 steals per game.