as others stated, he's homegrown, so nobody else is affected by his arrival. cr's departure made it possible for one more player to be included in the cl list, be it mds/rugani, or potentially a new arrival.
in the league, we still have a couple of free slots due to the u22 rule. kulu, de ligt and kaio are all u22, they won't take a "free" slot.
and of course welcome back mk7