Bayern Munich crushed Barcelona 3-0 at Camp Nou in their first game of the 2021-22 Champions League season.A goal from Thomas Muller, coupled with a brace from Robert Lewandowski, condemned the hapless Catalans to their first opening day defeat in the competition in 24 years.Without Lionel Messi to provide creative inspiration or score in crucial moments, Ronald Koeman's side were simply abject, a pale shadow of their former rip-roaring selves.The Bavarians found the breakthrough just after the half-hour mark when Muller's effort took a deflection off Eric Garcia.In-form Lewandowski then doubled their advantage with a tap-in after Jamal Musiala's shot pinged off the upright, before bagging a second in similar fashion as Serge Gnabry hit the post too.Bayern Munich have scored ELEVEN goals in their last two games against Barcelona in the Champions League.And Barca still have to go to the Allianz Arena. 😳 pic.twitter.com/3jZPYOuoY3— Squawka Football (@Squawka) September 14, 2021The reigning Bundesliga winners, pretty much like in their 8-2 demolition job last year, outclassed their Spanish rivals from stem to stern. With a little more cutting edge, the scoreline would've been much bigger.Barcelona, regretfully, have lost their identity as a club.Here are the player ratings for both sides:BarcelonaBarcelona lost their third consecutive Champions League home game for the first time in history!Marc-Andre ter Stegen - 6.5/10He denied Sane twice in an incredible display of goalkeeping, but Ter Stegen stood no chance with any of Bayern's goals tonight.Ronald Araujo - 7/10The young Argentine star came of age with a mature performance tonight, blocking so many shots in the first-half. He also made five clearances on the night.Gerard Pique - 7.5/10The Barcelona stalwart tried every trick in the trade tonight in stopping Bayern's in-form attackers, but to no avail. However, it doesn't take away any credit from his heroic display - five clearances, two blocked shots, three attempted tackles, three ground duels won, five long-balls, and 95% passes completed!🗣️ Gerard Piqué: “The result is bad, especially since we played in our stadium.” pic.twitter.com/xSLfG2qmgR— Barça Worldwide (@BarcaWorldwide) September 14, 2021Eric Garcia - 6/10He struggled to contain Lewandowski, catching him with a poor challenge early on before the Pole broke free of him in a wonderful attacking move. Oh, and Muller's effort also deflected off the centre-back.Sergio Busquets - 6.5/10The Barcelona skipper struggled to control the midfield as the game essentially flew past him. Koeman put him out of his misery in the 59th minute was taking Busquets off.Sergi Roberto - 6/10Another disappointing performance, Roberto was in sixes and sevens all night, struggling to get his act together against Bayern's fast-moving play. He, too, went off with Busquets just before the hour mark.Jordi Alba - 5/10Completely off the pace, sloppy in passing and easily dispossessed (23 times to be exact), Alba looked every bit like a spent force tonight. Are his days at the top now numbered?Frenkie de Jong - 6.5/10Often the playmaker for Barcelona, De Jong, too, was below his best tonight. His passing was accurate as always but nothing meaningful really came of it.Pedri - 6.5/10Euro 2020's best young player was a shadow of his talismanic self which took the competition by storm a few months ago. He sure passed the ball around well and ran his socks off, but his overall impact was minimal.Luuk de Jong - 5/10Not the most memorable debut for the Dutchman, who had an ineffectual outing for Barcelona. He made only 23 touches on the ball in 66 minutes of action and failed to muster a single shot.Memphis Depay - 6/10In terms of work-ethics at least, Depay was better than his international teammate. But as far as direct threats are concerned, he, too, was subpar. The flair with which he's played so far was totally lacking tonight.SubstitutesYusuf Demir - 6/10The youngster replaced Roberto and could hardly put up a better performance.Gavi - 6.5/10His positional sense was good and looked confident.Philippe Coutinho - 6/10The estranged Barcelona midfielder had hoped to conjure something against his old club but failed to produce anything of note.Oscar Mingueza - 6/10He read the game well and even looked to set up Depay at one point with a lunging ball, but it was dealt with comfortably by Neuer.Alejandro Balde - 7/10Fearless, audacious and full of vigor, Balde was a breath of fresh air. Arguably the best Barcelona substitute of the night.