Carlo Ancelotti insists the quality of Douglas Costa and Franck Ribery means they can play together for Bayern Munich.
Brazil winger Costa is back in contention having made his comeback from a thigh injury off the bench in Saturday's 2-0 Bundesliga victory at Schalke.
Costa is set to play a part in Bayern's Champions League opener against Rostov on Tuesday and that could pose a problem with the 25-year-old occupying a similar role to club stalwart Ribery, who endured an injury-hit 2015-16 season.
"My opinion is good players have to play and good players can play together," he told a pre-match news conference.
"This also applies to Ribery and Costa. While they cannot play full-back, they can play on both wings in offensive play. So this is not a problem."
"They are defensively very well organised," he said. "They beat Ajax with ease.
"We have to play quickly and directly in front of them. They have a good team ethic and they have players who help each other.
"Especially defensively I expect them to be very strong."
