Ilkay Gundogan says Borussia Dortmund can make waves in this season's Champions League following their 3-0 win over Shakhtar Donetsk in Tuesday's last-16 second leg.
A Lufthansa flight departing from Munich airport to Donetzk with referee Howard Webb has been delayed for several hours, a Spiegel Online reporter tweeted.
Ilkay Gundogan and Kevin Grosskreutz are injury doubts for Borussia Dortmund as the Bundesliga champions prepare for their first game in the Champions League knockout stages in 15 years.
Borussia Dortmund CEO Aki Watzke said Shakhtar Donetsk were not the club's "preferred opponents" for the Champions League second round but is confident his team can triumph.
Champions League Group D leaders Borussia Dortmund will not play for the draw they need away to Ajax to take them through to the knockout stages, chief executive Aki Watzke has said.