"We need to re-group and go again," says Burnley midfielder Ashley Westwood
Goals from Moroccan midfielder Hakim Ziyech - who was handed his full Premier League debut - defender Kurt Zouma and German international Timo Werner condemned Sean Dyche's side to a fifth loss of the campaign.
Burnley are now rock bottom as a consequence on goal difference, locked on a single point alongside Sheffield United, who have played a game more.
“It was a difficult day,” admitted Westwood. "We started all right and had a big chance for Barnsey, who unfortunately didn’t quite put it away, but they’re a top side and we were a bit off today, which isn’t like us.
“We were happy with the way we performed against Tottenham and I think we came off it a bit today.
“It’s difficult against a top side like that. They’re up there for a reason. They made six changes and you wouldn’t say they were weakened.
“They have the quality to hurt you and they stretched us all over the pitch and credit to them. They deserved the win.
“That’s the difficulty of the Premier League and we need to re-group and go again.”
Burnley's only success of the season came at The Hawthorns last month when they shut West Brom out.
The Clarets now head to Brighton, who have only mustered a solitary point from three league outings at the Amex Stadium this term.
“It’s not nice. We’ve not won a game yet,” said Westwood, who netted in defeat against Newcastle United at St James's Park.
“We’ve been here before. I think two years ago we were in this position and we’ve clawed ourselves out of it.
“We’ve got plenty of experience and a gaffer who believes in what we’re doing.
“We are a team that will keep working hard and I’m sure the win will come. It’s a big one on Friday now.”