Former Knicks star Kristaps Porzingis allegedly called a black woman a “slave” and a “b—h” as he beat and raped her, according to a report.

The 7-foot-3 athlete, who is white, is accused of referring to the woman as “my b—h” and “my slave,” adding that he owned her, during the alleged Feb. 7, 2018, sex assault in Porzingis’ Manhattan penthouse, according to TMZ.

The woman made the claim to cops, the website said.

Law enforcement sources told The Post — which broke the story Saturday that the NYPD is investigating the rape allegation against the hoops star — that they could not immediately confirm that he used the vile language.

Hours after suffering a gruesome knee injury during a game, Porzingis, 23, allegedly punched and raped the 29-year-old woman inside the Midtown skyscraper where they both lived, sources told The Post.

Porzingis, who now plays for the Dallas Mavericks, has denied the allegations and said through his lawyer that the accuser tried to extort him.