NEIL WARNOCK was not happy with referee Mike Dean's failure to spot an alleged elbow from Hull City defender Michael Dawson in Palace's 2-0 defeat at Hull City last Saturday.
Fraizer Campbell was the recipient, but ended up being taken off himself after falling foul of Dean's notebook.
But despite the defeat, Warnock wasn't too downhearted about Palace's performance and said there needed to be more belief.
"I'm disappointed with one or two things but I can't fault the effort, I thought the effort was there," he said.
"We probably needed a little bit more belief. I thought when we went a goal down it was probably our best spell.
"I was disappointed I had to take Fraizer off for a number of fouls which were silly but in the first minute he gets body-checked outside the box, which for me is a yellow card.
"And then just before half-time the elbow from Michael Dawson – I've seen red cards given for less than that and the ref doesn't see that but he sees all the little niggles that poor old Fraizer gets booked for.
"I think he [the referee] should be in a position to see elbows like that and know when it is not an accident.
"You shouldn't be able to lead like that, it is going to be dangerous play.
"They should obviously be educated a little bit better, even though he is one of our better refs."
So Warnock's unbeaten run in the league is over after five games – and now the Eagles will face league leaders Chelsea following the international break.
Nikica Jelavic headed over inside the opening 90 seconds as the home side started off the brighter.
Palace had a chance at the other end when Mile Jedinak curled narrowly over from a free-kick.
But the Eagles suffered an early blow when centre-back Scott Dann had to be carried off on a stretcher as Hull cranked up the pressure to win a corner.
Adrian Mariappa came on to replace him and Martin Kelly moved inside to partner Damien Delaney in the heart of defence.
To Palace's credit, they were hardly troubled at the back despite losing Dann, but they were nearly caught out when Mo Diame played a one-two and delivered across the six-yard box but no one could connect for the hosts.
As the first half came to a close, Hull were a whisker away from opening the scoring when Andy Robertson cut a low ball back to Abel Hernandez, who curled a first-time shot just wide.
Delaney nearly sliced into his own net ten minutes into the second period and then centre-back Curtis Davies placed well over Speroni's crossbar.
But on the hour-mark they deservedly took the lead through Diame. Robertson looked up on the left and delivered superbly for the midfielder to power a header past Julian Speroni from six yards.
Marouane Chamakh and Dwight Gayle came on as Palace changed formation, but it was Yannick Bolasie who nearly dragged the Eagles back into the game when his piledriver from range was expertly tipped over by veteran Steve Harper.
From the resulting corner, the ball was played back out to Delaney, who whipped a ball into the back post but Jason Puncheon's header was poor.
The winger wasted another chance with eight minutes remaining, curling over from the edge of the box after Gayle's shot was charged down into his path.
Speroni was nearly caught out as he went to clear a back-pass when Jelavic charged it down but luckily it went away from goal.
However, the Croatian striker got the better of the keeper in the last minute when he doubled Hull's lead to end the game.
Joe Ledley was dispossessed by Jake Livermore down the middle of the park and the former Spurs midfielder played a superb ball beyond the outstretched Delaney into the forward's feet.
Cutting back inside after Martin Kelly had got back to cover, he shot low into the bottom corner to beat Speroni and end the game.
Palace nearly got a goal back when Delaney's header was cleared off the line by substitute Liam Rosenior from a corner, before Mariappa blocked a Tom Huddlestone effort at the death.
