For Chelsea, the wait for a win over Manchester United in the Premier League has lasted a baffling amount of time given the status of both clubs across the past five years.
Early next month will exactly hit the half-a-decade mark since Alvaro Morata headed one of his few memorable goals in a Blue shirt to defeat Jose Mourinho's United at Stamford Bridge. Back then it was Antonio Conte in charge, Timeoue Bakayoko actually looked like a promising addition to the Blues midfield and Mason Mount had recently embarked on his first senior loan to Vitesse Arnhem.
The two coaches who will fill the same dugouts on Saturday evening were also in radically different places. Graham Potter was into his final season with Ostersunds whilst ten Hag was into his final weeks as coach of FC Utrecht before being approached to take over at Ajax at the end of that year.