Uruguay striker Luis Suarez says he is "100 per cent" fit to face England in Sao Paolo.
Suarez - who missed Uruguay's shock 3-1 defeat to Costa Rica - said he is ready to expose England's "defensive deficiencies".
Surgery on a knee injury threatened the Liverpool striker's involvement in the tournament, but the 27-year-old has returned to full training ahead of Thursday's crucial Group D encounter.
"I know all the players in the England squad, I know some of them because they are team-mates or rivals," Suarez told Uruguayan website Ovaciondigital.com.
"They have defensive deficiencies and we can take advantage of them."
The calls for Wayne Rooney to be dropped may be growing but they are falling on deaf ears inside the England camp, with Danny Welbeck backing his team-mate to make a difference wherever he is deployed. Today at a press conference in Rio he backed him saying he can have a 'massive impact'.
David Cameron has filmed a good luck message for the England football team ahead of their first World Cup match tonight.
The Prime Minister admitted that the draw - which sees Roy Hodgson's players take on Italy - was "tough", but stressed the country was behind them in a video message for FATV.
"All of those club rivalries fade away and we'll all be joining together, gathering round the television, sitting in the pub - which will be open late - and cheering on our national team," he said.
The flag of St George is to be flown over 10 Downing Street for England's matches in Brazil.
Wayne Rooney has hit back at Paul Scholes amid claims he should be dropped from the England team.
Scholes said Rooney was 'past his peak', while Gary Lineker said Roy Hodgson would have to consider dropping him.
He said: "To be honest, I'm not really interested in what anyone else has got to say. I'm interested in what Roy Hodgson and the coaching staff here and the people around me say.
"People have their opinions but I don't agree with them.[Scholes has] been a team-mate but he's been away from the first team for a long time."
"I'm not really going to react. I'm not interested. He's got his opinions so let's leave it at that."
Manchester United's Wayne Rooney says he's in the best shape he's ever been in for a major tournament such as the World Cup and says there'll be no excuses if he fails to perform in Brazil.
With just 23 days to go until their opening group match against Italy, the England squad are at a training camp in Portugal.
Rooney, who's played in two World Cups and two European Championships, says this is his best and possibly last chance to shine on the biggest stage of all.
Manchester United's interim manager, Ryan Giggs, says the groin strain which has sidelined Wayne Rooney for the end of the Premier League campaign has given him much-needed rest ahead of the World Cup.
On the fitness of Jonny Evans & Rafael, Giggs says Evans probably won’t play again this term but Rafa “may be involved in the last 2 games.”
Striker Wayne Rooney is a major doubt for Manchester United's match against Sunderland as he is ill and also has a tight groin.
Fellow striker Robin van Persie will be assessed to see whether he has recovered from the knee injury which has sidelined him since March.
Goalkeeper Anders Lindegaard and defender Rafael are doubts while interim player-manager Ryan Giggs has said he is unlikely to name himself in the match day squad.
Ryan Giggs is refusing to contemplate how his future might unfold beyond the end of the season.
Speculation is mounting that Manchester United will appoint Louis van Gaal as their new manager next week after holding talks with the Holland coach this week.
Whether Giggs stays on as part of the Dutchman's staff remains to be seen.
Wayne Rooney says Man United are going into tomorrow's game with Bayern Munich 'confident' and 'looking to progress into the semi-finals'.Read the full story ›
Wayne Rooney admits Manchester United's top priority when they face Liverpool on Sunday will be to stop Luis Suarez.Read the full story ›