The biggest sporting event in the world should be decided by the best players in the world. Unfortunately, that's not always the case with the World Cup. Injuries are already taking their toll, leaving some of the likely stars on the sidelines watching like the rest of us. Players like Cristiano Ronaldo, Luis Suarez and Manuel Neuer enter Brazil with big question marks.
The long club season always takes a toll, but this time around it seems like it's struck bigger names. Physios and doctors will be working long hours, before and after every match, to keep their teams as close to full fitness as possible.
While the teams flew in the players over the last few days in order to establish a base in Brazil, the teams also brought along case after case filled with everything from cold lasers to tape stations. Training rooms in the new stadiums spread around the country will be well-equipped, but don't expect anyone to come empty-handed either. There's always a trick in the pocket of a team's belt.
Here are several of the biggest stars with injury question marks as we head to Brazil for the 2014 World Cup. We'll see which teams have the best answers soon...