Brazil had been prevented from getting into a rhythm all game, with the frustration getting to the Brazilians.
After the full-time whistle, Neymar angrily kicked a ball at Colombia’s Pablo Armero, earning himself a red card.
Neymar had blamed his loss of control on the poor officiating, but Ronaldo was having none of it.
“It’s not justified, what he has said and done,” he said on Globo. “Currently he is going through a tough time.”
“He is acting very aggressively and he is not accepting anything that happens,” Ronaldo said.
“In the Brazil jersey, you cannot do that.”
Neymar will miss the team’s final group game against Venezuela.