Lamar Odom did not report back to the Mavericks on Monday and there is no timetable for his return.

Odom left the team on Wednesday to attend to his ill father in Los Angeles, according to a source.

"Lamar is not here today," Rick Carlisle said on Monday. "He is still dealing with a family matter and the hope is he'll join us soon, and we'll update you when there's an update."

Amid rumors that Odom might not return to the Mavericks and a midseason buyout could be a possibility, owner Mark Cuban told ESPN's Tim MacMahon via email Monday night: "We haven't discussed a buyout and we wouldn't do a buyout. No chance that happens at all. We want to help Lamar work through any personal issues and expect him to be a valuable contributor to the Mavs this season. Players go through challenges from time to time and we try to be (an) organization that fully supports our players when things are challenging for them. We will do the same for Lamar."