Ronaldo will be fit in one week

Ronaldo says he will have to "suffer" in training sessions

Ronaldo says he will be as fit as his Brazil team-mates in one week - well in time for the World Cup holders' first game, against Croatia on 13 June.

The Real Madrid striker, 29, has not played since April due to injury but he echoed coach Carlos Alberto Parreira's insistence that he will be ready.

"One week will be enough for me to reach the same level as the others," said Ronaldo on Wednesday.

"The training sessions will be tough but it's the moment to suffer."

Ronaldo's last game was on 8 April, when he limped out of a match against Real Sociedad having earlier found the net.

"I've been out of action for a month and a half and this is a pre-season for me," he admitted.

Parreira had said: "It seems that Ronaldo is better. He's been working with the ball and doing exercises.

"Ronaldo has been running and he just needs to regain match fitness. His weight is perfect."