34-year-old goalkeeper became RPL champion with the native club in the last three seasons.
Kerzhakov is a Zenit graduat, he was a part of the club from 2004 to 2010 and returned in 2015 from Anzhi. In the past season he made 18 appearances in the RPL and also entered all six matchdays of the Champions League group stage.
The keeper is a three-time RPL champion, two-time Russian Cup winner and three-time Russian Super Cup winner.