A burglar broke into the San Jose home of 49ers defensive lineman Ray McDonald on Saturday night while the player was in Arizona preparing for Sunday’s game against the Cardinals, police said.

An unidentified person called police at 10:47p.m. Saturday to report the burglary on the 2500 block of Bentley Ridge Drive, said Officer Albert Morales, a San Jose police spokesman.

When police arrived, they found someone had broken into the home and stolen several items, Morales said.

Authorities have not identified any suspects and did not say whether McDonald’s home was specifically targeted. Neighbors at the scene Monday morning told reporters that there have been other break-ins in the neighborhood.

McDonald was arrested Aug. 31 at the home on suspicion of felony domestic violence. Authorities released few details about the incident but said a female victim had “visible injuries.”

The Sacramento Bee reported that McDonald allegedly had an altercation with his pregnant fiancee. She reportedly showed police bruises on her arms and neck.

McDonald was released on $25,000 bail and has not been charged.

Three months before the arrest, on May 25, police responded to the home to deal with an altercation in which an engaged couple argued and the woman grabbed the man’s gun and “held it at her side,” police said. The woman put away the firearm and fled without incident, San Jose police said in a brief statement to the media last week. No one was arrested in the incident.

Authorities did not identify the man and woman involved in the altercation, but McDonald is known to live at the address with his fiancee.

McDonald played in the team’s first three games of the season, with the 49ers and the NFL saying they will allow the domestic-violence investigation to play out.

On Sunday, the 49ers lost 23-14 to the Cardinals at University of Phoenix Stadium in Glendale, Ariz.

Evan Sernoffsky is a San Francisco Chronicle staff writer. E-mail: esernoffsky@sfchronicle.com Twitter: @EvanSernoffsky