In just the sixth game of the Premier League campaign, Arsenal and Tottenham square off in what could be a season-defining north London derby on Sunday afternoon.
It was less than a month ago that Tottenham defeated Norwich 1-0 to top the Premier League table, still to concede in three wins from as many games as Nuno Espirito Santo received lavish praise - and subsequently the manager of the month award.
Conversely, a seemingly hapless Arsenal sat rock bottom - the first time the two scenarios occurred simultaneously in top-flight history - having lost all three of their matches, including a 5-0 drubbing against Manchester City, while failing to score in any.