Only three managers have matched Chelsea boss Maurizio Sarri's start to his Premier League career.
Victory over Cardiff City made it five wins from his first five games in England's top flight.
The 4-1 victory over the Bluebirds also made it Chelsea's best start to a Premier League season since 2010.
Sarri himself became just the fourth manager in the Premier League era to win his first five fixtures in the division.
Former Chelsea boss Carlo Ancelotti and Manchester City manager Pep Guardiola both managed the feat, as did Craig Shakespeare at Leicester in 2017.
Sarri will hope to follow compatriot Ancelotti's example and scoop a league title in his debut season in English football.
Ancelotti, now in charge of Napoli, won the Double with the Blues in 2009-10.