Brazil's Elano has been ruled out of the World Cup quarter-final against Netherlands with an ankle injury and could miss the rest of the tournament.

Elano, 29, was hurt during his side's group-stage win over Ivory Coast and limped out of training on Tuesday.

Brazil's team doctor Jose Luiz Runco said: "The bone is swollen inside.

"He has been undergoing treatment which can take a few days, weeks or a month, there is no timetable. Each day we will make an evaluation."

Elano scored in Brazil's opening two World Cup games before being on the receiving end of a crunching tackle from Ivory Coast defender Cheik Tiote in the final group match.

The former Manchester City player is angry that Tiote's challenge went unpunished.

"I told the referee that he didn't even give a free-kick for a tackle which could have broken my leg," said Elano.

"The same player then committed another heavy foul on Robinho for which he should have been sent off.

"They have to have another look at this type of violence, because the people who are losing out are the ones who get injured...

Injury sidelines Brazil ace Elano