Football World Cup: Koller could be out until quarter-finals

Czech striker Jan Koller has strained his hamstring and may not be fit until the quarter-final stage of the World Cup, the team's doctor said on Tuesday. "It could anything between 10 days and six weeks," doctor Jiri Foucek told reporters. Koller was carried off on a stretcher just before halftime in Monday's game against the United States, which the Czech Republic won 3:0, thanks in part to an early goal from Koller. There have been conflicting reports over the severity of the injury, with a number of media sites on Tuesday reporting that Koller would be ready to practice as early as this Friday.