£70m on stars such as Tiago Mendes (£10million) from Benfica , Didier Drogba (£24million) from Olympique Marseille , Mateja Kezman (£5.4million) from PSV Eindhoven and FC Porto pair Ricardo Carvalho (£19.8million) and Paulo Ferreira (£13.3million) Under Mourinho, Chelsea built on the potential developed in the previous season. The two solid English players