Paris Saint Germain trio Kylian Mbappe, Neymar and Thiago Silva showed no signs of pressure as they inspected the Stadio San Paolo, the scene of the unsurpassed Champions League fixture against Napoli.
The team of Thomas Tuchel can afford no further setbacks, as Liverpool and Napoli are the first pacesetters in one of the toughest groups in the competition.
Neymar and Co trained in Italy early in the day, and Napoli boss Carlo Ancelotti believes his players must be "perfect" to benefit from his old club.
Kylian Mbappe looked calm and composed as he looked around the San Paolo stadium in Napoli
Thiago Silva (L) and Neymar (R) joked around as PSG stars showed no signs of nerves before the game
The two teams met fourteen days ago when Angel Di Maria scored a point in a dramatic 2-2 draw at the Parc des Princes.
"We did not take full advantage of our performance in Paris because we could have won and we did not win," Ancelotti told reporters.
"Results never come by chance. I think maybe we were a bit forgiving and that can not happen tomorrow. To improve these teams, we have to be perfect and perform excellently. "
The players run during the session; They have all won their 12 Ligue 1 games this season
Gianluigi Buffon was warm when he took some breaks during a workout
Napoli, the third in Serie A, faces a PSG side that has eleven points ahead of Ligue 1 and has won 12 of 12 games.
"We have great respect for PSG – they are a great team and we know that," added Ancelotti, who was responsible for the French giants from 2011 to 2013.
"We take the confidence and conviction that we have performed well in Paris.
"Your goal is to win the Champions League. They are one of the best teams in Europe and are working on a project that started with me years ago. I think they are even more competitive now.
"The fact that things are balanced is in our favor because we were the third wheel when the draw took place, and yet here after three games against Liverpool and PSG compete. This shows that we are doing the right things.
"Tomorrow we have to do a wonderful job, because if you play teams like PSG, you have to find the next level."
Neymar (right) yawns as he stands with his Brazilian teammates Marquinhos and Dani Alves
Mbappe also had a feeling this Monday morning as he casually put on his sweater during the workout
PSG coach Tuchel kept his cards close to the chest before the match. He doubted the fitness of former Napoli striker Edinson Cavani, who is struggling with a thigh injury.
"I can not say it's Monday afternoon, so I can not say who's going to play," Tuchel said in his pre-game press conference.
"Cavani is with us and he is trained, we will see later. They always say that we are favorites, that Napoli are small or outsiders.
"We know this is a big challenge, the 2-2 draw in the first game was deserved, we could have done better, but for 30 minutes we were not at our level.
"Napoli are a strong team, they've been playing together for a long time and they have understanding, quality and defensive discipline.
"It will be a big challenge, but we want to win, this is the second half after the 2-2 draw in the first and we had two nice games against Marseille and Lille."
Napoli boss Carlo Ancelotti insisted he enjoy the greatest respect for PSG before the match
There is still some doubt as to whether former Napoli striker Edinson Cavani will play