Napoli boss Walter Mazzarri has warned his side not to rest on their laurels as they look to nail down a spot in the Champions League knockout stages, despite knowing they could lose their final group game and still progress.

The Italians are handily placed behind Group C winners Real Madrid, sitting three points and three goals clear of their Portuguese opponents Braga ahead of Tuesday’s clash in Naples.

Having also won the reverse fixture, the Serie A outfit know they can win, draw or even go down by a single goal in order to reach the last 16, but Mazzarri expects them to be on their game.

Since marking his return to the club a month ago with victory at Atalanta, he has overseen three successive defeats, with Real, Juventus and league leaders Inter Milan presenting a fiercely difficult sequence of opponents.

And that means finding their feet is crucial, regardless of the equation in front of them.

“I don’t want to even say that we can go through, even if we lose with a one-goal margin,” he told Sky Sports Italia.

“We are not a team that can make these calculations, but a team that must play its own game, have a little more balance than the last few outings and only think about this. If we were to do something different we would just have a bad game.

“It is fundamental to get through the round, without giving anything away, and play with solidity. Against Braga it is essential to regain certainties.”

Mazzarri will make a late decision on the role of striker Victor Osimhen, with the Nigerian having flown to Marrakech to be present for Monday’s African footballer of the year ceremony.

The six-goal top-scorer is making a swift return to rejoin his team-mates, but Mazzarri will need to judge whether or not to name him in the starting XI following his exertions.

“He’ll be back tomorrow, I’ll talk to him and we’ll see if he’ll be in a position to start from the first,” he said.

“The Africa Cup of Nations will take place soon and we will have to do without him then, but we have two important players like (Giacomo) Raspadori and (Giovanni) Simeone who have already demonstrated that they are important in the past.”

Khvicha Kvaratskhelia has been struggling with illness over recent days and could be a doubt, while Braga have Nigou Siakate, whose own-goal handed Napoli the win in the earlier fixture, suspended.

While the visitors face a stiff challenge trying to leapfrog their opponents, they have similar leeway of their own over Union Berlin.

A draw would be sufficient to send them into the Europa League play-offs and will take that spot even if they lose, providing Union do not upset Real.