he is not CTP - club trained player, so he counts as normal player grown in Serie A, Fagioli and Miretti are both CTP so on CL list they give us the extra spot in squad - the one we are usually not using as we dont have any CTP players - we have wider squad thanks to them.
For CHL, Kostic replace Pellegrini
If we buy Paredes, he will replace Arthur. It means Rovella go out on loan. If we don't buy Paredes, Rovella should be included replacing Arthur
Honestly I dont know what Rovella could earn by going to Monza. Seems like a waste of time.
If we really want to make him grow - loan him to a better club. I find it weird other clubs dont want him as a rotation player.