Borussia Dortmund coach Niko Kovac admitted his side have "a long way to go" despite their recent uptick in form ahead of Tuesday's home Champions League clash with Lille.

"Our stadium, it's a big castle. It's tough to play here – very tricky and very hard," said Kovac. "I hope we can use the atmosphere to make an impression on Lille." Lille have won Ligue 1 twice ...