Cristiano Ronaldo believes Portugal have as good a chance as any of the other countries to lift the World Cup trophy – but fears the Africans might disrupt their plans.Portugal face Ivory Coast in their opening match of the tournament – a match Ronaldo calls ‘key’ if they hope to make it out of a tough group which also features Brazil and North Korea.And with Sven-Goran Eriksson having recently taken over as Elephants coach, the Real Madrid star concedes getting off to a winning start will be even tougher.“I have never played against Ivory Coast … it will be an interesting game,” he told KickOff.com at Castrol’s Challenge Ronaldo event in Madrid.“They have strong players – African players are always strong, physically especially. We will have to prepare for a tough game, and with this new coach it will be more difficult – they will be more confident because he is a fantastic coach.”Nonetheless, Ronaldo believes Portugal can pull off a surprise and go all the way at the World Cup.“It is possible; we have to believe,” he says. “The qualification – we didn’t play fantastic, but sometimes this happens. France [in 2006 World Cup], this happened the same, and two years ago England stay out of the Euro Championships, but I still believe and I trust in the team.“I’m looking forward to it and just want to start the World Cup.”Source: Kickoff.com