Schalke boss Roberto di Matteo won't be underestimating Real Madrid's below par Cristiano Ronaldo tonight.
Ronaldo will start for Real against Champions League opponents Schalke.
Former Chelsea boss Di Matteo said: "We have the same opinion as everyone else. He has been the Ballon d'Or several times and is a player capable of deciding a game individually. We will try to stop him as a team.
"He is human and cannot always be at his best, but he is a great player with great qualities.
"He can do things that only allow him to decide a game."
