What exactly is funny? That Matuidi is not in his best form? That he has many good games, like Euro 2016, World Cup 2018 and in Juve and PSG? That Rabiot hasn't done anything? OK, what has he done?
It's no wonder Matuidi starts for every team and every manager ahead many excellent midfielders. Rabiot is getting hyped because he is younger and he's our star midfield signing (sad, I know). I am not saying he is bad, but he has a lot to prove. Matuidi on the other hand is proven quality, even if he hasn't adapted fully to Sarri's game, yet.
Maybe try thinking for yourself sometimes, instead of joining the bandwagon. You might surprise yourself and turn out not to be an idiot.
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On second thought, thinking for yourself might not be such a good idea.