On the pitch, two of English football's giants were slugging it out for a place in a Wembley cup final.
The scene in the Stamford Bridge press box was just as captivating, as Arsene Wenger watched the clash from the media seats in this, the second game of his three-match touchline ban.
When it was suggested to the Arsenal manager at Tuesday's pre-match press briefing that the press box would be the perfect place for him to watch Wednesday night's London derby, he replied: 'Why not?'
Maybe he listens to journalists after all.