Injuries delayed Ziyech's introduction to the Chelsea team, but he followed up his goal in the 4-0 UEFA Champions League win over Krasnodar in midweek by registering the opener at Turf Moor.

Kurt Zouma had a couple of sloppy moments in the first half but there was no doubt about the powerful header he produced to double the visitors' lead in the 63rd minute.

Ziyech then teed up Timo Werner, who only started because of an injury Christian Pulisic sustained in the warm-up, to hand Burnley a fourth straight home Premier League defeat for the first time since April 2010.

Ashley Barnes collided with Edouard Mendy after lifting a shot over the goalkeeper and the crossbar in the fifth minute, but referee David Coote did not deem it worthy of a penalty.

Nor did the official point to the spot when Ben Chilwell was nudged out from under Reece James's cross by Josh Brownhill, with play continuing and Nick Pope having to tip a looping Tammy Abraham header behind.

After Kurt Zouma stopped Barnes punishing his error near the halfway line, Pope was caught out when Ziyech fired a low drive from the edge of the box through Dale Stephens's legs and into the bottom-right corner in the 26th minute.

James Tarkowski made an important intervention to deny Werner a tap-in before half-time, but he was lost at sea when Zouma rose to steer Mason Mount's corner into the net.

Burnley unravelled and after Ashley Westwood's cross-field ball was intercepted by James, Ziyech slid a pass through for Werner to put the game to bed in the 70th minute.