This is the second time in three months that the UFC had a backup fighter ready to replace a main event competitor, as Kamaru Usman played that role at UFC 228.
Chookagian actually holds a victory over Eubanks, which came via unanimous decision at Cage Fury Fighting Championships 52 in October of 2015. Shevchenko and Chookagian have never met before, but that fight could become a reality at UFC 230 if Euabanks doesn't compete or after UFC 230 if Shevchenko is victorious on that night.
The UFC may be on the right track to have a back up fighter for the event, considering that Eubanks missed the UFC Ultimate Fighter 26 Finale due to issues with weight cutting.
UFC 230 takes place on Saturday, November 3 from Madison Square Garden in New York, New York with Valentina Shevchenko and Sijara Eubanks headlining. Fightful is providing live coverage of the event, with a post-show podcast to follow.