Real Madrid goalkeeper Iker Casillas has revealed his excitement ahead of Wednesday's last-16 Champions League clash with Schalke 04.

The Spanish outfit travel to Germany for the first leg this week, having remained unbeaten in all competitions since October last year.

"You have to enjoy the moment. Aside from it being a key game in the last sixteen of the Champions League, you also have to enjoy these kinds of encounters," he told bwin.

"They're the kind of games that any player would look forward to playing in. I really like playing in clashes like these, because they're important and have global impact."

Real moved top of La Liga at the weekend following defeats for title rivals Barcelona and Atletico Madrid.