Slovakia international Miroslav Stoch is the latest player to leave Chelsea after joining Turkish side Fenerbahce for an undisclosed transfer fee on a four-year deal.
The 20-year-old striker moved to Stamford Bridge from FC Nitra four years ago but struggled to break into the first-team picture.
He made only five first-team appearances for the Blues, all from the substitute's bench, and spent last season on loan at FC Twente.
He found the net 12 times in 39 appearances for a side that was then managed by Steve McClaren who guided them to the Dutch League title in 2009-10.
Stoch, who was also linked with PSV Eindhoven, Ajax and Galatasaray, is the fourth player to leave Chelsea this week, following the revelation that Joe Cole, Michael Ballack and Juliano Belletti will not be handed new contracts when their current ones expire at the end of this month.