Arsene Wenger believes Europa League holders Atletico Madrid could see their defence come crashing to a halt when they play Bayer Leverkusen.
Atletico travel to the group leaders knowing they must better the result of Aris Saloniki - who are at home to Rosenborg - to reach the last 32.
"This Europa League has had some interesting matches this season, and I have taken pleasure from watching it," the Arsenal manager said.
"I had lost some interest but this year I find it really good.
"Atletico won last year's Europa League and are back in the competition. The team is suffering a bit in in theRead More »from Atletico in Europa League peril