More heinous allegations against former MLB star Milton Bradley … his wife, Rachel Bradley, is now accusing the ex-baseball player of threatening to kill her in front of their 5-year-old son.

Rachel made the claim in new court docs, obtained by TMZ Sports, in which she's asking a judge for a temporary restraining order from the 43-year-old.

In the documents, Rachel — who got married to Milton in 2015 — says the former Los Angeles Dodger told her on Feb. 6, 2022 that he was going to kill her while her mother and their son were in the room.

She also claimed in the documents that Milton has terrorized her on a daily basis.