The battle for power in Group C of the UEFA Champions League continues on Tuesday as Napoli hosts PSG.
Napoli move level on points with second-placed Liverpool, who suffered a shock 2-0 defeat by Red Star Belgrade.
But in comments to Sky Sport, coach Carlo Ancelotti warned qualification is not secure yet.
"But we will accept. VAR is needed as quickly as possible".
PSG sit third, only one point adrift, leaving Buffon with plenty of belief in their last-16 chances.
Next up for PSG is a match against Monaco on Sunday while the next Champions League match comes November 28 at home against Liverpool. Fans should watch closely to see whether PSG's Neymar, Kylian Mbappe and Edinson Cavani can out-gun Napoli's Dries Mertens and Lorenzo Insigne.
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Team News! Napoli first up!
The World Cup star's pace carried him on to a cross down the left and he bamboozled Raul Albiol before sending a deft cutback into the path of Bernat.
The former World Cup victor first stretched to palm Nikola Maksimovic's angled effort to safety before guiding Mertens' lobbed effort over the bar moments later.
DF Thiago Silva, 5 - Involved in the Napoli penalty incident, Callejon's offside or not, it was a soft way to surrender a point to the home side having held out so valiantly.
As PSG panicked at the back, Buffon palmed Callejon's close-range cross into the path of Mertens only for the Belgian to fire over from two yards out. Thomas Tuchel's side defeated second-place Lille 2-1 despite being without Edison Cavani, who is nursing a hamstring injury.
Paris St-Germain thought they should have been awarded a penalty after 70 minutes when Bernat was tripped inside the box and Mbappe's strike dribbled inches wide with five minutes of normal time remaining.