Everton defender Ashley Williams has admitted that the club are "angry and disappointed" following their 5-1 defeat at Arsenal on Saturday.
The Toffees suffered a damaging defeat at the Emirates Stadium as Gunners midfielder Aaron Ramsey netted a hat-trick, while there were impressive performances from Pierre-Emerick Aubameyang and Henrikh Mkhitaryan.
Everton's only showing in 90 minutes came from striker Dominic Calvert-Lewin, and Welsh centre-back Williams expressed his frustration at the full-time result.
"The manager was not happy - but none of us are," the defender Everton's official website. "It hurts like any defeat but when you go down like that, 4-0 in the first half, it does really hurt.
"It is football, and whatever formation you play, or whichever personnel are in the team, you have to do your best.
"You have to compete and we did not compete in the first half. We have used different formations and won, so that is not an excuse."
Everton will look to bounce back when they face Crystal Palace on Saturday.
No Data Analysis info
