First-half goals from Crysencio Summerville and Valentin Castellanos saw the Clarets slump to a 2-0 defeat on home turf to their fellow strugglers.
But the main talking point came in the stands, as frustrations boiled over among the Clarets faithful who voiced their discontent with Parker.
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Chants of “getting sacked in the morning” and “we want Parker out” were heard on more than one occasion as Burnley failed to win for the 16th straight league game.
Here’s how the Clarets rated:
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13. SUB: Jacob Bruun Larsen - 5/10
For Anthony, 66 Don't recall him having too much impact on the game, having previously been involved in a spat with fans while he warmed up. Photo: Kelvin Lister-Stuttard Photo: Kelvin Lister-Stuttard
14. SUB: Loum Tchaouna - 5/10
For Edwards, 66 Whipped in a few crosses, but otherwise struggled to make an impact. Taking Edwards off did seem counter-productive though. Photo: Kelvin Lister-Stuttard Photo: Kelvin Lister-Stuttard
15. SUB: Lyle Foster - 5/10
For Flemming, 66 Came on up front but then ended up out on the left. Didn't see much of the ball though. Photo: Kelvin Lister-Stuttard Photo: Kelvin Lister-Stuttard
16. SUB: Armando Broja - 5/10
For Ugochukwu, 78 Change could have some a little sooner, but again it was all too little, too late anyway. Photo: Kelvin Lister-Stuttard Photo: Kelvin Lister-Stuttard