Dries Mertens revealed Rafa Benitez’s pre-match instructions as Napoli won 2-1 in Marseille. 
Jose Maria Callejon scored the opener before Duvan Zapata’s stunning strike secured the three points at the Stade Velodrome.
“Benitez told us to put pressure on Marseille right from the very start,” the Belgian told Canal+.
“It’s wonderful playing for a team like Napoli. It’s just a shame Dortmund won...”
Borussia Dortmund beat Arsenal 2-1 in London this evening, so Group F is a three-way tie with Napoli, Borussia and the Gunners all on six points.
Olympique Marseille are still to get off the mark.
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