Chelsea endured a nightmare opening 45 minutes against West Brom and in the process equalled an unwanted stat across the whole of last season in just their third Premier League game.
The Blues were 3-0 down at half-time at The Hawthorns, the first coming after Marcos Alonso's poor header allowed Matheus Pereira to pick out Callum Robinson to provide a fine finish across Willy Caballero.
Premier League debutant Thiago Silva, at the ripe old age of 36, was then comically caught napping and slipped before Robinson raced clear to put West Brom into a two-goal lead.
A third arrived via Kyle Bartley following more suspect defending at a corner and Chelsea have now made three errors directly leading to goal in just three top-flight matches this term.
That represents as many as the Blues made in the entirety of the disrupted 2019-20 campaign, which was Lampard's first in charge of the club.
Additionally, at three minutes and 20 seconds, Robinson's was the earliest goal Chelsea have conceded since May 2017, while Silva is the first outfield player to make an error leading to a goal on debut in the Premier League since Issa Diop for West Ham against Arsenal in August 2018.