Real Madrid star Cristiano Ronaldo is aware of the threat from Galatasaray striker Burak Yilmaz ahead of their Champions League quarterfinal tie.

Yilmaz is in impressive goalscoring form for Gala this season.

"He's a player who's doing well in the Champions because scoring eight goals is hard. As always, we have to be focused. The defenders have to be on the ball because it's crucial that we make it to the semi-finals," said Ronaldo.