Mesut Ozil and David Alaba both missed first-half penalties, while goalkeeper Wojciech Szczesny was sent off for the home side, though it was the Germans who claimed victory
Both sides had missed first-half penalties, with Mesut Ozil missing from the spot for the Gunners and David Alaba failing to convert for Bayern, though Arsenal had goalkeeper Wojciech Szczesny sent off for the foul that conceded the Germans' penalty.
|VIEW FROM THE EMIRATES
|By Greg Stobart
What a draining evening for Arsenal that ends with Arsene Wenger’s side on the verge of elimination from the Champions League at the hands of Bayern Munich for the second year in a row.
The two key incidents of the match are obvious. Firstly, Mesut Ozil’s penalty was absolutely woeful when he had the chance to reward Arsenal’s early dominance.
The Gunners had the European champions rattled, and the game was fairly even until the home team were reduced to 10 men when goalkeeper Wojciech Szczesny was sentcoff for bringing down Arjen Robben.
Bayern missed the penalty, but went on to totally dominate possession and territory, with Arsenal having just 12 per cent of the ball in the secondchalf as they were worn into the ground by the visitors’ passing.
Toni Kroos was the star of the show and swept a wonderful opener into the top corner before substitute Thomas Muller finally broke down Arsenal’s stubborn resistance late on.
The atmosphere at the Emirates Stadium was superb throughout and the Gunners won 2-0 in Munich last year - but in reality it’s now time for Wenger to concentrate on the league and FA Cup.
Arsene Wenger's surprise decision to start Yaya Sanogo ahead of Olivier Giroud appeared inspired as the pace of the French youngster and recalled Arsenal winger Alex Oxlade-Chamberlain unsettled Europe's tightest defence in the opening stages.
But Bayern had stunned Manchester City with early goals in both their group-stage games against Arsenal’s Premier League counterparts and Kroos almost repeated the trick when he sent a 25-yard effort arrowing for the top corner in the second minute.
Szczesny, though, made a fine fingertip save and Arsenal went on to pin back their illustrious opponents during the opening exchanges.
Manuel Neuer stopped Sanogo from giving Arsenal reward for their early endeavour as he produced an excellent reaction stop following Jack Wilshere’s prodded pass towards the striker.
Wilshere then released Ozil and Jerome Boateng - who endured a particularly torrid start - felled his Germany international team-mate in the area. But Ozil failed to capitalise from 12 yards as Neuer pushed away a tame effort.
That disappointment checked Arsenal's momentum, although Neuer had to rush out and deny Oxlade-Chamberlain in the 24th minute when the winger got the better of Alaba on the end of Sanogo's raking pass.
Arsenal left-back Kieran Gibbs departed with a hamstring problem after half an hour and replacement Nacho Monreal did not get up to speed quickly enough.
Robben raced past a static Monreal onto a delightful chipped pass from Kroos in the 37th minute and Szczesny charged out and brought the Dutchman down.
The Poland goalkeeper will miss the return match in Munich and may also find himself in hot water with Uefa after appearing to make an offensive gesture when leaving the field after being shown his red card.
A lengthy delay followed and, although Alaba sent replacement Lukasz Fabianski the wrong way, his penalty rattled the base of the post.
Predictably, Bayern began the second half firmly on the front foot as Thiago Alcantara narrowly failed to connect with a cross from the left and Kroos drilled a low shot at substitute goalkeeper Fabianski.
Laurent Koscielny then stabbed goalwards from Ozil's 51st-minute free-kick but it was a moment of brief respite and the visitors led three-minutes later, Kroos curling into the top corner from 20 yards.
Fabianski then saved twice from Robben and Muller almost found a decisive touch to cap the latest rampage from Rafinha in the 66th minute.
By now, the attacks were relentless and, when Muller stooped to head a deserved second with two minutes left, it was no more than Bayern deserved.
They could even have added a third when Kroos rattled the post as Bayern looked to pile on the misery. But two would prove enough in the end for the defending champions, as a tough second leg lies ahead for Arsenal.