Chelsea have sold midfielder Alexei Smertin to Dynamo Moscow.
Smertin, who has spent this season on loan at Charlton will cost the Russian club £1m.
The Russian skipper, 30, has signed a three-year deal with the club, and his move to Moscow was finalised on transfer deadline day for the new Russian league season which begins this weekend.
Smertin signed for Chelsea for £3.45m in the summer of 2003 from Bordeaux, but immediately went on loan to Portsmouth for the season.
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