Antonio said the club had “stolen 50 goals from my son”, after failing to find a quality replacement for Ronaldo.
Ronaldo won 16 trophies and scored 450 goals in nine seasons at Madrid, before being sold to Juventus for €100 million in July.
“Cristiano Ronaldo was good. Was he cocky? We all have defects.
“But it turns out he [Ronaldo] scored 50 goals [a season] . He is missing. You are missing a prominent goalscorer. They haven’t brought one, not a single one.
“There was talk of Neymar and others but no one came. They have stolen 50 goals from my sond,” Jose Antonio told El Mundo before Sunday’s Clasico.