Scott Parker’s side were downed by a Mats Weiffer double as the Clarets extended their winless league run at Turf Moor to 175 days.
More significantly, the Clarets now find themselves 12 points adrift of safety with only six games remaining, meaning relegation is now only a matter of time.
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It was a similar story for Burnley, who played okay but once again lacked the quality to register a result – although they were left to rue two close offside calls.
Here’s how Burnley’s players rated:
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1. Martin Dubravka - 6/10
Not at fault with either of the goals, but a little fortunate to get away with a poor kick out of his hands during the first half. (Photo by Stu Forster/Getty Images) Photo: Stu Forster
2. Bashir Humphreys - 5/10
Looked uncomfortable playing out of position at right back, but unfortunate to see his equalising ‘goal’ ruled out for offside. (Photo by Stu Forster/Getty Images) Photo: Stu Forster
3. Hjalmar Ekdal - 6/10
Did okay on a rare league start, his first since the start of January. Denied Brighton a second at the start of the second half with a big block. (Photo by Stu Forster/Getty Images) Photo: Stu Forster
4. Maxime Esteve - 7/10
Seemed to step up a level wearing the captain’s armband in Kyle Walker’s absence. Harshly booked for a clean challenge (Photo by Stu Forster/Getty Images) Photo: Stu Forster