Chelsea winger Yuri Zhirkov is close to joining Anzhi Makhachkala after struggling to make an impact in his two-year stint at Stamford Bridge.
Lifesports reports the 27-year-old former CSKA Moscow midfielder has agreed contractual terms with Anzhi and will undergo a medical later this week.
Chelsea are likely to receive a €15 million (£13.2m) payment from Anzhi for the transfer.
Anzhi have not spoken about a done deal, but their chief executive German Chistyakov said all would be revealed soon when asked about Zhirkov's possible arrival.
"We do not comment on rumours until the moment of an official announcement," Chistyakov said, as reported by itv.com.
"When something becomes concrete we will certainly share the information."
It is said an unsettled spell in England coupled with a desire for first-team action have influenced the player's choice to move back to Russian football.