Chris Polk out for Eagles on Thursday night; Lance Moore expected to sit for Steelers

The Eagles and Steelers will be several players short on Thursday night in Philadelphia. Eagles cornerback Brandon Boykin (hamstring), wide receiver Josh Huff (shoulder), linebacker Jake Knott (hamstring), tailback Chris Polk (hamstring), wide receiver Brad Smith (hamstring) and center Julian Vandervelde (back) will not play, the club’s website reported. Polk, a second-year pro from Washington,…