The hearing was postponed because McDonald's case is still being investigated and hasn't yet been submitted to the San Jose district attorney's office.
McDonald was arrested Aug. 31 on felony domestic violence charges, just days after NFL commissioner Roger Goodell announced a stricter discipline policy for domestic violence.
McDonald played in San Francisco's Week 1 win over the Dallas Cowboys, and 49ers CEO Jed York said this week McDonald won't be punished by the team until more evidence emerges or the police investigation progresses.
Domestic violence is currently at the forefront of the NFL due to the controversy surrounding the Ray Rice saga. Rice was released by the Baltimore Ravens this week and suspended indefinitely by the NFL after new video emerged showing Rice punching then-fiancée, now wife Janay Palmer in an Atlantic City casino elevator.
Goodell has come under fire for his role in the Rice case, and the NFL has appointed ex-FBI director Robert Mueller III to head an investigation into Goodell and the NFL's handling of Rice.
A third-round pick of the 49ers in 2007, McDonald has 16.5 sacks and 171 tackles in seven seasons with the team.
- Ben Estes