Arsenal target Felipe Melo has been warned not to return to Brazil by Ronaldo.
Juventus midfielder Melo was sent off for Brazil in their defeat to Holland on Friday night, sparking outrage in his homeland.
Ronaldo, now playing for Corinthians, tweeted: "Felipe Melo better not come to Brazil for his holidays.
"I don't understand the lack of communication between Melo and Julio Cesar. When he comes out Julio always shouts, but this time both men went for the ball," added Ronaldo commenting on the own goal.