LOWDOWN ON OLYMPIACOS

FORM: FOUR wins and a draw to start their league title defence. Began this group with a 1-0 win over Marseille before losing 2-0 at Porto. KEY PLAYER — YOUSSEF EL-ARABI: THE Moroccan striker hit 20 league goals last season and has five in five games this campaign. MANAGER — PEDRO MARTINS: HE won the Greek domestic double in his second season and knocked Arsenal out of the Europa League in February.