The Partenopei have a 100 per cent record in the tournament so far, beating Dynamo Kiev 2-1 as well.
“We are playing well and the performance was perfect apart from the two goals we conceded at the end," Mertens told Mediaset Premium.
The Belgian bagged a brace, while Arek Milik and Marek Hamsik were also on target. Without Gonzalo Higuain, we play more as a team unit. We all want to give more compared to last season and so far we're doing that.
“My celebration was the one our kit-man Tommaso does. He and the others who work behind the scenes here are extraordinary people."
“Sarri is very important for us and truly a Coach who should've been in the Champions League sooner. He is an excellent tactician."