A week ago, Bellingham had admitted the Spanish side would need a miracle, “something unbelievably special, something crazy”. Fast-forward seven nights and he was talking of a comeback as “nailed on”. Among Madristas, the talk of Remontada was relentless. To Arsenal supporters, the opposite trend had been in effect. While few skipped home after the first-leg proclaiming the tie over, as the second leg crept closer, though, so too did the dread and fear.