Things aren’t all well at Paris Saint-Germain.

Last week, everyone was talking about the squabble between Neymar and Edinson Cavani over who would take a free-kick and a penalty during their 2-0 victory against Lyon.

While their argument was pretty childish and petty it seems there might be an underlying issue at the Parc des Princes.

PSG broke the bank to sign the Brazilian from Barcelona in a deal worth €222 million. While they broke the bank, they may also be in the process of breaking the Financial Fair Play regulations.

The Ligue 1 club will also have to pay around €190 million for Kylian Mbappe next summer after loaning him for this campaign.

But bringing in Neymar - and Mbappe - for such crazy fees has its consequences.

With UEFA being pressured to investigate PSG’s reckless spending, the club were forced into a fire-sale. 

And in the closing few days of the summer transfer window, president Nasser Al-Khelaifi opened the exit door for the likes of Angel di Maria, Javier Pastore, Blaise Matuidi, Lucas Moura, Julian Draxler, Hatem Ben Arfa, Serge Aurier and Thiago Silva.

That’s according to Spanish daily El Pais but Al-Khelaifi only managed to sell Matuidi to Juventus and Aurier to Spurs.

But what did the PSG players think of selling some of their stars just to make space - and funds - for Neymar?

Well, they weren’t too happy and Neymar was immediately disliked by many in the PSG dressing room before he even arrived.

What Cavani said to Neymar when he joined

And Cavani even had a few words for Neymar on his first day at the club.

"And who is this? Do you think you’re Messi?” the Uruguayan striker asked when Neymar first walked into the dressing room.

And Neymar certainly hasn’t helped his cause with his behaviour at the club since his arrival.

He’s demanded free-kicks and penalties and has already rustled a few feathers, despite scoring five goals in six appearances. Of course, his salary of more than €25 million-per-year, which is double what the second highest paid player - Cavani - earns, also goes against him.

Things are so bad that Dani Alves has already taken the whole squad out for dinner in an attempt to repair the damage.

Whether or not Neymar and Cavani can put their differences behind them until January - or next summer - remains to be seen. But there is definitely trouble in paradise.