Italy forward Chiesa sneaked in on goal and lashed past Edouard Mendy as Chelsea were caught cold just 11 seconds into the second half.
The visitors were still processing their half-time adjustments when Juventus struck, and Thomas Tuchel’s side never recovered.
Bernardeschi should have put the game out of sight only to bungle wide in a rare Juve breakout consisting of Rabiot’s raking pass and Juan Cuadrado’s fine first-time cross.
Ross Barkley was thrown into the mix as well, underscoring Tuchel’s desperation to force a change.
The one-time England midfielder made his first European appearance for Chelsea since August 2020, and offered a quick impact too.
The 27-year-old threaded a fine ball through for Lukaku, only for the £98million signing to blaze wide.
At the death Havertz headed over from a Chilwell corner, but while Chelsea will lament late chances missed the Blues will certainly admit falling short in Italy.