According to the ever reliable Gianluca di Marzio, Chelsea have opened talks with the Russian club to sign Garay. The two clubs are trying to reach an agreement before the window closes.
The 28-year-old Argentine international joined Zenit in 2014, after enjoying three wonderful years with Portugal club Benfica. Garay has capped Argentina 31 times till date since making his debut in 2007.
Chelsea manager Jose Mourinho has addressed the need of a central defender to bolster his squad in the summer.
The Blues are reportedly interested in signing Everton defender John Stones and have had submitted three bids already for the England international.