Arjen Robben, Robert Lewandowski, Thiago Alcantara and Thomas Muller scored the goals to leave the Gunners facing yet another last 16 exit

Bayern Munich effectively guaranteed themselves a place in the Champions League quarter-finals after the Bundesliga title-holders romped to a second 5-1 thrashing over Arsenal in successive seasons.

Carlo Ancelotti’s hosts led through Arjen Robben’s early goal, before Alexis Sanchez levelled for a Gunners side that improved markedly as the first half progressed.

It was a different, sorry story for the visitors after the break, as a Thiago Alcantara brace, Robert Lewandowski’s header and Thomas Muller’s late strike earned Bayern a commanding lead going into the second leg at Emirates Stadium next month.

For Arsene Wenger and his team, who crumbled in familiar fashion when it mattered most, a seventh successive exit from the competition in the round of 16 now appears all but inevitable.

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