The 30-year-old television personality has 13-month-old daughter Dream with his former partner, who claimed in a lawsuit filed late last year that Rob had been violent toward her during their tumultuous relationship.
Chyna claimed in the documents filed in November that when she tried phoning her former partner Tyga - with whom she has five-year-old son King Cairo - Rob ''immediately grabbed the phone from her hand and violently knocked her to the ground where she landed on her hands and knees''.
However, in a response filed last week and obtained by The Blast on Tuesday (02.01.18), the 'Keeping Up with the Kardashians' star has insisted Chyna did not ''suffer any injury or harm'' at his hands.
Part of his response reads: ''Plaintiff's causes of action are barred because she did not suffer any injury or harm as a result of any conduct by Defendant. Damages resulting from any injuries or harm Plaintiff claims to have suffered must also be offset against the damages Defendant suffered as a result of Plaintiff's wrongful acts.''
It comes after Chyna, 29, also claimed she ''suffered pain and difficulty walking for days'' after the alleged incident.
She said she called King's nanny, who took him away, before locking herself in her bedroom.
However, she then alleged that ''Rob Kardashian lost all control and tore the hinges off of Ms. White's bedroom door. Ms. White then retreated to the bathroom, hid in the bathroom closet, and locked the door''.
The court documents state: ''Ms. White suffered pain and difficulty walking for days following the domestic dispute as a result of Rob Kardashian violently knocking her to the ground.''
In addition to alleging that Rob assaulted her, Chyna is also seeking legal action against his famous family, whom she claims prevented their reality show 'Rob & Chyna' from being renewed for a second season.