How did Arsenal collapse so quickly?

First of all, you had to pay tribute to Bayern. After a shaky first half-hour, they grabbed the game by the scruff of the neck, found an extra gear in the second half, and went in for the kill. When Robert Lewandowski equalised on the night, you could feel the air seeping out of the Emirates. Arsenal were done. But Bayern, it seemed, were just getting started.

This was not a carbon copy of Arsenal’s collapse in Munich. That was a collective brain fade. This was a collective loss of interest. Even after Bayern scored their third, their fourth, their fifth, there were no recriminations, no jabbing fingers, no angry looks. Just acceptance. As if Arsenal were expecting this to happen, and were now taking a sick satisfaction in it.