On Wednesday’s evidence, the answer is a resounding 'no'.
Treacherous weather conditions reduced the Group D leaders to hotel lobby drills ahead of their Matchday 5 encounter with PFC CSKA Moskva, but it mattered not. Bayern were as dominant as ever come kick-off inside the glacial Khimki Arena, where goals from Arjen Robben, Mario Götze and Thomas Müller handed the Bavarians a deserved and comfortable 3-1 victory.
"Psychologically we had to be ready tonight, especially after Saturday's big one against Borussia Dortmund, which was very important for us," commented Robben after the game. "It was a tough match and the pitch was in poor condition, but we’re professionals and have to make the best of it. We won 3-1, which is great. We’re a fantastic team, and I am very proud to be part of it."
'No mean feat'
It’s now five wins from five in this season’s competition for the defending champions, who - better still - have penned their very own chapter of Champions League history by becoming the first side to win ten matches on the trot at Europe’s high table, ironically enough trumping FC Barcelona’s nine-game streak of 2002-03 in the process.
"I’m proud of my team and I’m happy for the club," beamed head coach and former Barcelona favourite Pep Guardiola. "Winning ten games in a row is no mean feat in Europe. The pitch was in a bad way, it was dangerous and difficult. The team adapted extremely well. The players showed character and I’m really happy with their performance."
History in the making
Guardiola’s predecessor, Jupp Heynckes, probably wasn’t quite so chipper the last time Bayern tasted defeat in Europe in the second leg of their last-16 tie at home to Arsenal FC back in March. Their lessons learned, not once in the eight months that followed have the Bundesliga leaders walked anywhere near as close to the edge. Just ask Juventus, FC Barcelona, Borussia Dortmund, FC Viktoria Plzen, Manchester City and CSKA.
The general consensus now is that the quadruple winners can reach even dizzier heights under Guardiola. Barring an Arsenal-style collapse against Manchester City next month, the record German champions will take their place in the next round as group winners. Should they negotiate the next seven games in the competition, they will make history once again. No side has ever successfully defended the Champions League crown, but at this rate Bayern might well be the first.