Ohtani and the Dodgers were in Seoul, South Korea, for their opening series against the San Diego Padres when reports were published about alleged ties between the 39-year-old Mizuhara and an illegal bookmaker.
Police said they had begun an investigation, but did not release any information about where the stabbing may have occurred or a possible suspect or motive.
The chief medical examiner for Santa Clara County outlined the multitude of injuries found on Arely Naomi Proctor after she died during a church ritual.