Javi Gracia's suffered his first defeat in the Premier League as Leeds United boss. Wesley Fofana's second-half header was the difference with the visitors wasteful in the final third.
The hosts started the stronger of the two sides with Joao Felix's effort cannoning off the crossbar, before Illan Meslier had to be alert to deny Kai Havertz. Leeds held strong in the opening 45 minutes but opportunities at the other end were scarce.
Fofana eventually opened the scoring for Graham Potter's side in the 53rd minute heading Ben Chilwell's corner into the back of the net from seven yards out. It took the Whites an hour to force the Blues keeper into a save with Georginio Rutter's effort hitting Kalidou Koulibaly and rolling into the hands of Kepa Arrizabalaga from eight yards out.
