Complex sentence: Nkoulou began his career at Kadji Sports Academy in Douala, the same academy that produced the likes of Samuel Eto'o, Carlos Kameni, and Eric Djemba-Djemba.
Split into simpler sentences: Nkoulou began his career at Kadji Sports Academy in Douala. The same academy that produced the likes of Samuel Eto'o, Carlos Kameni, and Eric Djemba-Djemba.