Clement resigned from his position as an assistant coach at struggling Blackburn on Friday and will now complete his expected move to Ligue 1 in time to start work next week alongside former Chelsea midfielder Claude Makelele, now also in an assistant role.
"Clement was my assistant at Chelsea and I have a good relationship with him," Ancelotti said at a press conference today.
"He will do a good job here, it will begin next week, and he will do the same work as Claude.
"He will be my assistant like Claude. He has the experience, expertise, and a lot of motivation."