After Arsenal's interest started for N'Golo Kante, I see that Manchester United have also decided to intervene. Kante is one of the best midfielders of the Premier League now. Aging doesn't change much for him for now. Chelsea wouldn't like to lose a player like him because this would cause them to be weakened in defense more. By the way I understand Manchester United's interest too as they are already after Frenkie de Jong too. They must be aiming to sign one of these players for sure.
Why do Arsenal and Man United try to sign Kante? They must know he is a key player for Chelsea, it is almost impossible to sign him. As far as I know, Chelsea has no other defensive midfielder that has the same capability as Kante. Even if they have Jorginho, Jorginho still can't play at the same level as Kante. I am really sure that Chelsea won't lose another key player after they lost Rudiger. Chelsea must be aware that they must keep the quality and the quantity of their squad if they still want to compete for the title in the next season.
Kante's contract is only one year left with Chelsea, then last season Kante also suffered several injuries, so his performance has decreased slightly.
However, it is reported that Tuchel was quite satisfied with the contribution made by Kante, and decided not to sell Kante in the transfer market this
summer. After all, Fabrizio Romano reports that rumors that Arsenal and Man United will buy Kante from Chelsea will not come true. Apart from Chelsea
not planning to sell Kante, neither Arsenal or Man United have so far not communicating with Kante agent and have not sent any offers to Chelsea.
So it can be said that Arsenal and Man United's interest in Kante is only a rumor.