Twice in the blinding hell of the Bernabeu, Arsenal had an easy escape route to kinder light. Twice, instead, they chose darkness, and picked a way through it with a staggering lack of alarm.
In a performance of astounding authority, Mikel Arteta’s side marched into the semi-finals of the Champions League, making footnotes of twin blunders en route to one of the finest results in their European history.
