However, the Palace boss stopped short of blaming the referee for another defeat, urging his side to take a look in the mirror.
Chelsea’s third goal came courtesy of an Enzo Fernandez penalty in the 64th minute, awarded after Joao Pedro’s shot from close range struck the arm of Jaydee Canvot.
England was called to the monitor having not initially awarded a penalty and eventually altered his decision, giving a penalty for the denial of a goal scoring opportunity – despite the ball striking Canvot’s body first.
The referee also brandished a yellow card, explaining over the PA that it was not a red card because it was an ‘accidental’ handball.
Things went from bad to worse for Palace when Adam Wharton was handed the first red card of his career for a late lunge on Moises Caicedo, with England producing a second yellow card. Caicedo escaped a second booking himself for a late challenge on Sarr in the 32nd minute.
After being tackled by Sarr in the first half, Pedro Neto kicked out and stamped on the Senegal international. Although the red card offence was missed by England and seemingly unchecked by the Video Assistant Referee.
Despite an afternoon of refereeing blunders, Glasner urged his side to focus on the variables they can affect themselves.
"I could easily blame the referee for a few decisions,” said Glasner. "Caicedo had two fouls in the first half and conceded one yellow. Adam had two and conceded two yellows.
"I watched the penalty back and it hit Jaydee’s hip first. We were briefed before the season that if the ball touches the body first and then hits the hand, it’s not handball.
"Pedro Neto stamped on Ismaila Sarr. VAR has to intervene, it’s a clear stamp – it should have been a red card.
"But, to be honest, it feels wrong to blame the referee because he can’t help us in the future. We can only help ourselves. That’s why I think it’s important to talk about ourselves."