Mbappe's contract runs until 2022 and several clubs want him such as Real Madrid. The fear of losing their main star has PSG on high alert.
'ESPN says that right now Kylian Mbappe's renewal is PSG's main priority. The rumours which say he will be at Real Madrid next season (or Liverpool with the money they would get if they sold Mane to Madrid) deserve to be taken seriously.
PSG seem to have been negotiating his renewal for some time. This will obviously include a pay rise for Mbappe and that would allow him to turn down any offer he receives.