Corner Bradley Fletcher is day-to-day after suffering a concussion Monday, the Eagles said. He did not practice yesterday . . . Tackle Dennis Kelly, recovering from back surgery, was a partial practice participant. He said he hasn't been cleared for contact . . . Running back Chris Polk was asked about his swooping tackle, when he dropped Redskins kickoff returner Chris Thompson on the Washington 9. "I held on for dear life. Thank God he went down, because I'm not used to tackling," Polk said. "It's something I'm working on . . . It's definitely a rush, running down there like your hair's on fire and just making plays. There's no other feeling like that" . . . Reporters aren't allowed to watch full-team periods in practice, but apparently backup QB Nick Foles gets a few reps every day with the first-team offense, in case he has to play. Rookie Matt Barkley said he works pretty much exclusively with the scout team.