Marco Silva has told Everton that they must improve quickly before next weekend's clash with Arsenal.

The Toffees were defeated 3-1 at home against West Ham United on Sunday.

"When you win, you win together and when you lose, you lose together," he said. "I do not want to talk just about our strikers

"For the first goal we had to do something different. It's a big lesson for us to learn fast what has happened this afternoon. As I've told our players, and we need to learn it quickly.

"We have to improve every day to see what we did in the wrong way to improve our squad and improve for the next match."