Borussia Dortmund coach Jurgen Klopp is looking forward to his side's Champions League campaign this season.

The German champions prepared for their Group D opener against Ajax on Tuesday with a 3-0 victory over Bayer Leverkusen in the Bundesliga.

"Obviously it feels good ahead of Ajax to win like that, better than if we had lost 3-0," Klopp is quoted as saying by Reuters.

"We will take all our positive points into this game but the Champions League is a completely different competition.

"We now have set the standard for our games, playing the football that we need to be playing. Now we have to show we can do it every three days."

The other game in Group D on Tuesday is between Real Madrid and Manchester City at the Santiago Bernabeu.