FC Zenit Saint Petersburg have stopped pursuing Inter‘s Andrea Ranocchia. This was confirmed by Tuttosport:

“The Russian club have indeed found the agreement with Chelsea for the immediate purchase of the Serbian Branislav Ivanovic, whose contract expires in June. Ranocchia in this January has been probed by many clubs (Sassuolo, Palermo, Bologna, West Ham, Swansea, Hull City), but his salary of 2.4M Euros has so far been the factor blocking all negotiations.”

Source: Tuttosport