Kardashians v. Blac Chyna: Corey Gamble testifies he witnessed altercation between Blac Chyna, Rob Kardashian

Kris Jenner's boyfriend Corey Gamble testified Tuesday that he witnessed Blac Chyna attack Rob Kardashian on Dec. 15, 2016. The model has claimed that the Kardashians mispresented the altercation.

All four members of the Kardashian family have testified in court.

At the time of the alleged Dec. 15 altercation, Rob and Chyna had been living at Kylie's home. Gamble had rushed to the home and witnessed a physical altercation between the two.