CAMPINAS, Brazil -- Cristiano Ronaldo again wore a brace on his troublesome left knee Friday, triggering a new wave of questions over his health as his Portugal team held its final World Cup training session before departing for a crucial game against the United States. The reigning world player of the year took part in some light workouts with the first team, followed by stretching. He was smiling and appeared at ease at practice at the team base in Campinas, northwest of Sao Paulo, as he took part in a playful game of keep away from teammates. The team was set to leave later in the day for Manaus for its matchup with the U.S. on Sunday. Portugal was humiliated in a 4-0 defeat by Germany in their opener. Another loss and the fourth-ranked team in the world could be eliminated even before its final Group G game against Ghana. Ronaldo has been hampered by tendinitis and a muscle injury since before the tournament, creating plenty of speculation about how he would perform in Brazil. He was doubtful to play before the Germany game, but declared himself fit and went on to produce a subdued performance that only added to the usual drama and scrutiny surrounding the player. Team officials dismissed reports suggesting that Ronaldo could be risking his health by playing, saying they were tired of having to deny every rumour about a player many consider to be the worlds best. They noted, however, that he often plays with a brace and said hes healthy and would play against the U.S. Teammate Helder Postiga also expressed frustration over the media circus around Ronaldo. "I have already answered so many questions about Cristiano Ronaldo. Actually we speak about him every day. If I am sick of it, imagine how he is feeling," Postiga said. "If he is available enough to train with us thats probably because he is feeling well. Hes been training with us all these days and as usual he always gives his best. Hes just fine." Ronaldo has been one of the best players in the world for about a decade, and last year he even passed Lionel Messi by ending the Argentina forwards streak of winning the FIFA Ballon dOr. He has also excelled on the world stage, helping Portugal reach the 2004 European Championship final and the 2006 World Cup semifinals. The team also advanced out of the group stage at both Euro 2008 and the last World Cup, and then reached the semifinals at Euro 2012. Although he is Portugals all-time record scorer with 49 goals in 111 appearances, Ronaldo scored just twice in the last two World Cups. Cheap Tampa Bay Buccaneers Jerseys . Marcus Olsson, 23, joins Blackburn on a free transfer from Swedens Halmstads. He made 139 appearances and scored 17 goals in his four years with the club. He earned his first caps for Sweden this month, featuring against Bahrain and Qatar. Buccaneers Jerseys Authentic China .J. -- The New York Jets have promoted Tony Sparano Jr. http://www.cheapbuccaneersjerseysauthentic.com/. Both the top-seeded Djokovic and sixth-seeded Fish took relatively easy paths, with the Serb winning when opponent Jo-Wilfried Tsonga retired in the second set with a sore arm and Fish dominating Janko Tipsarevic in two quick sets. Buccaneers Jerseys China . The third baseman whipped the ball across the diamond to second baseman Aaron Hill. He quickly tossed it to shortstop Chris Owings, who flipped over his shoulder to left fielder Cody Ross. Wholesale Buccaneers Jerseys . Needing to bulk up on both sides of the line, the Falcons agreed to terms with guard Jon Asamoah, defensive end Tyson Jackson and defensive tackle Paul Soliai. Asamoah and Jackson played last season with Kansas City, where Asamoah lost his starting job.DAVIE, Fla. -- In a culture that fosters conflict, Jonathan Martin sought to avoid it. Upset by treatment he considered abusive, the Miami Dolphins tackle let the situation fester for months before leaving the team last week. Martins agent then complained to the Dolphins, who suspended guard Richie Incognito. The NFL is investigating whether Incognito harassed or bullied Martin, and whether their teammates and the organization mishandled the matter. Some say Martin, a Stanford graduate who went about his business quietly, handled the situation well. But pro football is a macho world, and some players believe Martin should have responded more firmly. "Is Incognito wrong? Absolutely. Hes 100 per cent wrong," New York Giants safety Antrel Rolle said. "No individual should have to go through that, especially in their workplace. "But at the same time, Jonathan Martin is a 6-4, 320-pound man. I mean, at some point and time you need to stand your ground as an individual. Am I saying go attack, go fight him? No. I think we all understand we can stand our ground without anything being physical." Dolphins players have robustly defended Incognito, long considered among the NFLs dirtiest players. Hes now a notorious national villain, but teammates praise his leadership and loyalty. Theyve been less passionate in their support of Martin, saying he and Incognito behaved like best friends. "They did a lot of stuff together," tackle Tyson Clabo said. "So if he had a problem with the way he was treating him, he had a funny way of showing it." Martin is with his family in California to undergo counselling for emotional issues. A senior partner in a New York law firm was appointed by NFL Commissioner Roger Goodell to investigate possible misconduct and prepare a report. DeMaurice Smith, executive director of the NFL Players Association, said Thursday that he continues to be in touch with those involved. "The NFLPA has taken steps to ensure that every one of our affected members is represented," Smith said in a statement. "It is our duty as a union to learn the full facts, protect the interests of players involved and hold management accountable to the highest standards of fairness and transparency." The alleged bullying saga engulfing the Dolphins has shed a light on how damaging perceptions can be in the violent world of the NFL. A Pittsburgh native, Martin is the son of Harvard graduates and his great grandfather also graduated from the school in 1924. At Stanford he protected Andrew Lucks blind side, and also majored in the classics. Taken in the second round of the 2012 draft, Martin has what it takes physically to be an NFL player -- size, skill, athleticism, intelligence. He won praiise from the Dolphins for his diligent study of game and practice video.dddddddddddd But while has been a starter since the first game of his rookie season, Martin developed a reputation in the NFL for lacking toughness. That impression might have been reinforced by the way he handled his issues with Incognito, current and former teammates acknowledge. "A lot of people might look at Jonathan Martin and think that hes soft because he stepped away from the game, and say, Why dont you just fight him?" said Seattle Seahawks receiver Doug Baldwin, who played with Martin at Stanford. "Well, if you look at it with common sense and being logical, what options did Jonathan Martin have? "He could fight Richie Incognito. He could go and tell on the players, which we know in the football locker room doesnt go over too well. Or he could remove himself from the situation and let the proper channels take care of itself. And I think he made the intelligent, smart choice without putting himself or Richie Incognitos physical abilities in danger." Houston Texans Antonio Smith, who has accused Incognito of dirty play since they went against each other in college, said Martin should have responded more forcefully. Smith drew a three-game suspension this year for taking Incognitos helmet and hitting him during an exhibition game. "I dont think that in my opinion a grown man should get bullied," Smith said. "And I think that if youre realistically getting bullied, theres only one way my mom taught me and my dad taught me how to get rid of bullies. They used to always say, You hit a bully in the mouth. It will stop him from bullying, no matter what you hit him with." Incognitos harassment of Martin included text messages that were racist and threatening, two people familiar with the situation have told The Associated Press. Incognito is white, while Martin is biracial. Two other people familiar with the situation have said Martin talked of quitting football earlier in his pro career before leaving the Dolphins. One person said Martin considered giving up the sport because of the way he was being treated by other offensive linemen on the team. The person added that Martin now wants to continue his football career. The Dolphins (4-4) play for the first time since the scandal broke Monday night at Tampa Bay (0-8). At least 75 reporters and cameramen tracking the case were in the locker room after Thursdays practice, but receiver Brian Hartline said the scrutiny wont prevent the team from playing well. "It almost heightens your awareness," he said. "You know its going to take away from your focus, so it does the exact opposite. You overcompensate to make sure you stay aware of the game." 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