Declining at a rapid rate, but Sarri has shown himself to be a fraud and is unable to get his team to create chances despite it being his signature trait. Job is too big for him.
CR would have been better off moving to PSG and pumping his stats against farmers with Neymar, Mbappe and Di Maria feeding him.
PSG didn't want him. Where would he play ? Neymar is nail on the left side of the attacks and Mbappé on the left side. Icardi/Cavani as number 9.
Also, PSG couldn't afford his salary.
He was right to go to Juventus as he can be the biggest star in Italy and Juve and enjoy a big salary with low taxes (contrary to PSG and France).
His decline is sad. I don't like him particularly but he was/is a great athlete and footballer. We are lucky to have seen him perform alive. Messi is obviously better but to keep up in Spain with Messi goal return is an impressive feat. And he is a monster in CL. It is also a wake up call that Messi won't be eternal either.