Arjen Robben said it all -- "We didn't expect an easy game like that."
Robben could have been forgiven for expecting more of a challenge from one of the most expensively assembled teams in European football.
But the Dutchman will not lose too much sleep over the way Manchester City capitulated against a Bayern Munich which simply oozed class.
Bayern, which won the European Champions League last year, claimed a 3-1 win -- a result which flattered City for the most part.
"The first 70 minutes we played some terrific football," Robben told Sky Sports.
"We were so dominant against a big team in Europe. We didn't expect an easy game like that.
"It is a compliment to our team but we expected more from City. We didn't give them any space, we pressed them right up to the goalkeeper and they just kicked it away. Sometimes they gave us too much space and we used space well."
City's disastrous flirtation with the Champions League was supposed to end with the arrival of new manager Manuel Pellegrini.
It has failed to make it past the group stage in its two previous attempts and it faces a challenge once more.
Make no mistake about it -- if this was a boxing contest then the referee would have brought this bout to a halt at halftime.
Bayern, which is highly fancied to successfully defend its title this year, produced a level of performance which City could only dream of.
From the moment Franck Ribery's drive somehow flew through the grasp of City's goalkeeper Joe Hart, Bayern was rampant.
City, which was beaten by Aston Villa in the Premier League at the weekend, looked off the pace and unable to keep up with their opponent.
That Bayern managed to score just once in the opening 45 minutes was the only surprise -- but it soon made sure of victory with the help of some inept City defending.
Gael Clichy was the guilty party on this occasion, failing to track the run of Thomas Muller, who was afforded the freedom of the penalty area before firing past the stranded Hart.
City was stunned and Robben added a third just four minutes later after unleashing a rasping effort which beat Hart at the near post.
To its credit, Pellegrini's team did offer a response with substitute Alvaro Negredo curling home a delightful effort with 11 minutes of the contest remaining.
City sensed an unlikely comeback with four minutes to go when Jerome Boateng was shown a straight red card after taking out former teammate Yaya Toure.
David Silva curled the free kick against the crossbar but Bayern negotiated the final few minutes to record an emphatic victory.
"We knew they were a really good team and they showed that. That is why they are champions," City defender Micah Ricahrds told Sky Sports.
"They didn't play with a striker and there was so much movement. It felt like they had an extra man and I wish them all the best.
"Hopefully we can now improve. We tried, there were some tired legs out there but we can do better than that."
In the group's other game, CSKA Moscow overcame Viktoria Plzen 3-2 to move level on points with City.