Before we get ahead of ourselves, though, there is a plethora of reasons why this transfer almost certainly won't come to fruition - despite Boehly's best efforts. Chief among them is that Mbappe is rumoured to already have an agreement in place over personal terms for his dream move to Real Madrid. The 24-year-old is supposedly set to pocket a €160 million (£137m/$175m) signing-on fee should he elect to hold out and join them next summer.
Then, of course, there is the fact that Chelsea are unable to offer Champions League football next season, or indeed any form of European competition. It's well documented that it's Mbappe's dream to win the Champions League, but the Blues will hope that his willingness to effectively miss a season of action with PSG means he would be willing to forgo his aspirations at Stamford Bridge, for the time being at least.
There is Financial Fair Play (FFP) to consider, too. The Blues are already on UEFA's watchlist and are in grave danger of failing to stay within the Premier League's three-year limit on losses of £35m ($44.6m) or more. As they attempt to balance the books with their ongoing firesale, signing Mbappe for an astronomical fee to an astronomical salary would surely be counterintuitive - indeed, it would blow their newly-formed wage structure out of the water.
Relations with PSG aren't at their best, either, following the aforementioned debacle surrounding Ziyech's proposed January deadline day switch to Parc des Princes. Chelsea are alleged to have failed to submit their paperwork on time due to an admin error, infuriating both the player and PSG.
Finally, there is the cost of the transfer; though the forward rejected them, competition from Saudi club Al-Hilal, who offered a €300m (£257m/$329m) transfer fee and a €700m (£599m/$768m) salary, could well price Boehly out of a marquee move. There are surely no players they could offer in part-exchange to change that.