Liverpool defender Martin Skrtel is reportedly wanted by former club Zenit St Petersburg.
The 28-year-old Slovakian left the Petrovsky Stadium for Anfield in 2008 for £6.5m.
However, Zenit could attempt to re-sign the centre-back before the Russian transfer window closes on February 24, according to the Daily Mail.
The Russian champions are believed to value Skrtel at around £13m.