Diego Simeone praised Cristiano Ronaldo and Juventus ahead of their Champions League clash.
"He has an incredible record and in any situation near the box, he's dangerous. He's not easy to control, he has it all. We suffer and sometimes it's our turn to win, and other times we lose, but he's an animal in front of goal," said Simeone.
Juventus knocked out Atletico Madrid in last season's Champions League.
Simeone highlighted Atleti's experience in the competition as the deciding factor.
"We are trying to grow and adapt to these competitions, but words are just words; facts, mistakes and good decisions give us experience."