Monaco vice-president Vadim Vasilyev claims the club have beaten off competition from Chelsea to sign Aleksandr Golovin.
"This afternoon Monaco and CSKA Moscow finally agreed the transfer of Golovin," Vasilyev told Sport Express.
"Our main competitor was Chelsea. I believe that Monaco offered more favourable conditions for the club and a more understandable project for the player.
"Chelsea is a top club, who I treat with great respect, but the midfield is overloaded. In my opinion, Aleksandr can definitely play in any of the leading clubs in the world. But it will take him some more time, he is in a transition stage."