Napoli vs Dynamo Kyiv - Dries Mertens wants Napoli to stay focussed

Napoli forward Dries Mertens has warned his side against complacency as they bid to take a step closer to booking their place in the knockout stages of the Champions League.

The Italians go into Wednesday's clash with Dynamo Kiev sitting joint-top of Group B with Benfica, one point ahead of third-placed Besiktas with the Ukrainians languishing in last place.

Mertens, who has already hit three goals in this Champions League campaign, told the club's official website: "We won in Kiev so everyone thinks this is going to be an easy game but that is not so.

"Of course we want to get the three points because it is logical that we want to finish first in the group, but before that we have to think about making sure we go through."

Maurizio Sarri's side ended a run of three games without a win with a 2-1 triumph over Udinese on Saturday in which Lorenzo Insigne scored twice.

Sarri, who could be tempted to bring back Manolo Gabbiadini after two weeks of inactivity due to injury, said he never lost faith that his side would shrug off their recent poor run.

He told reporters: "From the point of view of the game we've never played badly, but we have just let ourselves down with errors.

"Clearly the results have got to affect the judgement, but the performances have always been excellent. There are some important steps still to be taken but our mentality is improving."

Kiev go into the game with just a glimmer of hope that they could overhaul third-placed Besiktas and coach Sergei Rebrov insisted his players would still be going all out to damage Napoli's hopes.

They go into the game in good form after three straight wins in the Ukrainian Premier League but still smarting from their 1-0 loss at Benfica last time out in Group B which left them adrift at the bottom.

Rebrov told a press conference: "The group standings do not concern us. For us every game is crucial regardless of the objectives, and we will not be going there to play for a draw."