Michael Essien has chosen to temporarily withdraw his services for the Ghana national side in order to focus on club concerns with Chelsea.
Manchester United midfielder Anderson cannot wait to return to action after recovering from the serious knee injury which abruptly curtailed his 2009/10 season.
Chelsea defender Yuri Zhirkov says his health is "much better" than last season but admits he is still suffering pain in his knees.
Real Madrid and Jose Mourinho have been denied the services of Brazilian playmaker Kaka as the GBP;56 million signing requires surgery on a long-standing knee injury.
David Villa believes Fernando Torres would never join Manchester City but feels Chelsea and Barcelona are "real options" for the striker.
Uruguay should discover on Monday whether skipper Diego Lugano will be fit to face Netherlands in Tuesday's World Cup semi-final.
Australia have suffered a blow with the news that midfielder Vince Grella has been ruled out of the key match against Ghana on Saturday with a knee injury.
Nigeria midfielder John Obi Mikel will miss the World Cup because of an as yet unspecified injury, with uncapped Brown Ideye named as his replacement in the squad.
Denmark remain hopeful Simon Kjaer will be fit for the World Cup finals after including the defender in their final 23-man squad for the World Cup finals.
Ghana's World Cup preparations have suffered a huge setback with the news that a knee injury will prevent Chelsea star Michael Essien from playing in the finals in South Africa.
Fernando Torres is on course to be back to full fitness for the World Cup finals after training with the Spain squad for the first time on Thursday.
Switzerland defender Christoph Spycher will miss out on this summer's World Cup finals due to a knee injury.
Manchester City winger Martin Petrov has been ruled out for the rest of the season with a knee injury.
Liverpool will not know the full extent of Fernando Torres' knee injury until later this week.
Hibernian have reportedly lost Merouane Zemmama for the remainder of the season after the midfielder suffered a knee injury.
Chelsea have been dealt another defensive injury blow with the news that Branislav Ivanovic will be out for at least a month, after tearing his medial knee ligaments against Blackburn Rovers on Sunday.