San Jose police said they were called shortly before 3 a.m. to the 2500 block of Bentley Ridge Drive. McDonald, 29, was taken into custody without incident and booked into Santa Clara County Jail, they said.
Police said midday that he had posted bail, which was set at $25,000.
Under the NFL’s new policy on domestic violence, first-time offenders will be suspended without pay for six games, “with consideration given to mitigating factors, as well as a longer suspension when circumstances warrant,” NFL Commissioner
McDonald was drafted by the 49ers in 2007. In the last three seasons, the team said, he started in all but three regular-season games.
This could be another blow to the 49ers' defense. Last week, outside linebacker Aldon Smith was suspended for the first nine games of the season for violating the NFL's personal conduct policy.