A huge news came up on Tuesday just before PSG's Champions League match against Benfica, that Kylian Mbappe is not happy at the club. Therefore, after the signing of a new deal with the Ligue 1 giant a few months ago, Kylian Mbappe transfer speculation has once again emerged. The French forward wants to leave Paris Saint-Germain as early as next winter's transfer window. Let’s take a look at the clubs that could sign Mbappe in January. What is upsetting Kylian Mbappe at PSG? It’s bizarre how things can change dramatically, especially in Kylian Mbappe’s case. The World Cup winner is one of the most sought-after players of this generation and has no shortage of suitors. Read: Forbes Highest-paid Footballers 2022: Mbappe overtakes Messi, Ronaldo Every big club wants to sign him, but Mbappe's childhood dream is to play for Real Madrid one day in his career. His desire could have come true had he not signed a new mega-money contract with PSG last May. Mbappe opted to stay three more years at Paris Saint-Germain by signing a 3-year contract. However, the Qatari-owned club agreed to fulfill some of Mbappe’s wishes to convince him to extend his contract. One of Kylian's major wishes was to play at his preferred position. He wants to play on the left side rather than as a proper no.9. But this hasn’t been fulfilled as the French forward has been used as the club’s main striker. On the other hand, Lionel Messi and Neymar Jr. have been deployed just behind him, and they have a more free role. This decision has upset Mbappe big time and now he wants to move away from PSG as early as next January, multiple sources confirmed. Read: Making waves: Qatar World Cup hires 3rd cruise ship as floating hotel