He has struggled in the past couple years on court, but he's also become a father, dealt with a pandemic, and more.

However, his debut at the 2020 Rolex Paris Masters left many fans wondering... where is the Karen Khachanov of 2018?

The 2018 Paris-Bercy champ was ousted in his opener by Davidovich Fokina, 6-3, 2-6, 6-2.