Burnley fell to their first defeat in four games as West Bromwich Albion ran out 4-0 winners at the Hawthorns.
Albion raced into a two-goal lead by half-time as first Craig Dawson and then Saido Berahino took advantage of two well-worked set pieces by the hosts.
After the break, Berahino got his second before Graham Dorrans settled at the death.
Despite their best attempts, Burnley had, this time no answer as the Clarets keep searching for their first Premier League win of the season.
David Jones and Dean Marney both missed the game through injury as Burnley lined up in a 4-1-4-1 formation.
Former Baggie Steven Reid anchored the midfield with Scott Arfield and George Boyd ahead of him in the centre. Meanwhile, Ross Wallace and Michael Kightly were given starting berths on the wings. Lukas Jutkiewicz was the lone striker.
West Brom head coach Alan Irvine named an unchanged side to the one that ran out 1-0 winners at White Hart Lane last weekend. Ex-Claret Chris Baird was out because of illness.
Albion had the better of the opening exchanges with Burnley defending narrowly and forcing the opposition to attack down the flanks. The Clarets dealt with crosses into their box comfortably, though.
On 13 minutes, Kightly had Burnley’s first effort on goal, but he could not keep his half-volley down and on target.
At the other end, Michael Duff deflected Chris Brunt’s strike into the side-netting before Berahino dragged a shot inches wide of the post from a tight angle.
And West Brom’s dominance brought them rewards on the half-hour mark. Brunt’s brilliant, in-swinging delivery from a corner was headed into the net by Dawson who jumped highest at the far post to send Albion in front.
Moments later, Berahino ran through at the Burnley defence only to be stopped by a combination of Duff and Jason Shackell.
On 42 minutes, the hosts threatened to double their lead when Brunt’s well-struck, first-time effort did not miss the target by much.
Shortly afterwards, Tom Heaton produced a fingertip save to turn Dorrans’ long-range shot over the crossbar.
West Brom did manage to score their second goal of the afternoon just before the break though. This time it was James Morrison with a well-hit corner and when Dorrans flicked the ball on at the near post, Berahino reacted quickest to divert it home from close range.
At half-time, Sean Dyche introduced debutant Nathaniel Chalobah and Ashley Barnes into the action as he looked for a reaction from his side.
The Clarets also switched to a 4-4-2 system in the second half.
Albion had the first dangerous effort after the break, however, when Shackell did well to throw his body in the way of Craig Gardner’s shot from outside the box before Ben Mee produced exactly the same kind of commitment to deny Sessègnon.
West Brom soon got their third, though. On 56 minutes, Dorrans played Berahino through on goal and the England under-21 international calmly struck the ball beyond the reach of Heaton to give the Clarets a mountain to climb.
However, Burnley were far from giving in. With 25 minutes left on the clock, Kieran Trippier sent a superb ball into the box and Ben Foster was forced to a splendid stop to prevent Jutkiewicz’s header from whistling in the net.
All of a sudden, chances appeared to continue coming. Neither Marvin Sordell nor fellow substitute Barnes could keep their shots on target.
At the opposite end, Dorrans danced his way into the penalty area, but scuffed his effort wide of the post.
On 85 minutes, Boyd had a strike well blocked by Dawson before Trippier brought another save from Foster.
However, it was the Baggies with the final say when substitute Cristián Gamboa escaped down the right and pulled the ball back for Dorrans to complete the scoring.
Burnley: Heaton – Trippier, Duff, Shackell, Mee – Reid (Chalobah 46) – Wallace (Barnes 46), Arfield, Boyd, Kightly – Jutkiewicz (Sordell 67).
Subs not used: Gilks, Keane, Long, Ward.
West Brom: Foster – Wisdom, Dawson, Lescott, Pocognoli (Gamboa 83) – Dorrans, Gardner (Yacob 87), Morrison, Brunt – Sessègnon (Samaras 74), Berahino.
Subs not used: Myhill, McAuley, Mulumbu, Blanco.
Goals: Dawson 30, Berahino 45+1, 56, Dorrans 90
Bookings: Dorrans – Chalobah, Mee
Referee: Jonathan Moss Attendance: 24,286