Observation deck: Samuels would be big loss

ASHBURN, Va. -- Four observations from Washington Redskins training camp, gleaned from the team's practices:

1. Injury bug bites early
The Redskins have to be nervous about the knee injury that has sidelined Pro Bowl left tackle Chris Samuels for a month. Last year, they watched running back Clinton Portis sustain a preseason shoulder injury, a setback that wrecked their hopes of jumping out to a good start.