Everton manager Roberto Martinez has said that his side were too naive as they lost 4-0 to Liverpool in the Merseyside derby this evening.

The high-flying Toffees were undone at Anfield thanks to a brace from striker Daniel Sturridge and goals from Steven Gerrard and Luis Suarez.

"It does not look good for Romelu Lukaku, he picked up a bad injury. It was that type of night when everything went against us," said Martinez, according to BBC Sport.

"For different reasons we could not maintain the normal intensity, we became exposed and were naive. We gave the ball away far too easily.

"We wanted to perform so well for the fans and we have been terrific all season. We need to bounce back straight away and perform in the manner we did before today."

Despite the defeat, Everton are still sitting in sixth position in the Premier League table.