Chelsea took control of their Champions League last-16 tie against Lille with a comfortable victory at Stamford Bridge.
Kai Havertz headed in Hakim Ziyech's corner after eight minutes and Christian Pulisic was the beneficiary of a superb run and pass from N'Golo Kante in the 63rd minute as the Blues secured a crucial first-leg advantage.
Out-of-sorts striker Romelu Lukaku was only a substitute, with Havertz the main attacking threat - and the German almost scoring twice before his early strike.
The only negatives on a good night for Chelsea and manager Thomas Tuchel were injuries to Ziyech and midfielder Mateo Kovacic ahead of Sunday's EFL Cup final against Liverpool at Wembley.