not true IMHO
We could have still gotten £60 to £80m for him right after the CL win.
We still would have won the UEFA Super Cup (he only played half the game, and did not play all that great) and FIFA World Club Championship (he also did not play that well at time, the Palmeiras MF dominated us at times, freanted not the full game of course) without him, of that I am convinced. We would have likely had Tchou as our DMF, because the people who blocked the Tchou buy (idiots, he would have only cost 35m to 40m then, Monaco needed money post COVID Ligue 1 financial woes) were the same who refused to sell Kante. If the decision to sell Kante was made, then I fully believe the board would have also valued Tchou and bought him, the two are linked in terms of mindset of the board powers that be who scuttled both from happening. The next two seasons, Kante was constantly injured.