David N’Gog
This is another Rafa Benitez signing from France that never delivered on his promise (if he ever had any to begin with).
David N’Gog arrived from Paris St. Germain and made a total of 94 appearances in all competitions before being moved on.
Most of them were as a substitute, but still 19 goals in all that time is less than impressive and N’Gog has hardly excelled at his other clubs.
The striker was never that good and spent three years at Bolton Wanderers before moving to Swansea City.