Premier League 2018-19: If Sarri is to challenge, Chelsea need better fullbacks

Chelsea's games and lineups are too predictable; Sarri needs to evolve

Premier League 2018-19: Maurizio Sarri needs to wake up - Chelsea need either a change in tactics or a change in personnel

Premier League 2018-19: Why Chelsea are still far from the finished article

Maurizio Sarri needs to rethink tactics as Chelsea's goalscoring woes continue