The Spain captain has just left Atletico Madrid for Milan after complaining about the way he has been treated at LaLiga stadiums across the country.
Stoichkov told Sport: "Morata? He is a boy who has suffered a lot, no one can explain how the point of reference of this team (Spain) can be criticised.
"Furthermore, he works hard for his national team. In the semi-final, in the goals of (Dani) Olmo or Lamine (Yamal), no one talks about Morata.
"He drags two or three defenders behind him, leaves spaces... he is a centre forward who no longer exists... he works a lot, he sacrifices a lot and I really don't understand how he has been criticised like this."
