The Redskins were reportedly concerned with Lito Sheppard's health when the Eagles asked about their interest in him last month.

Sheppard hasn't played a full 16-game slate since 2003. The big, new contract he wants may have been near as big a turnoff. The Redskins might entertain trading for a cornerback on draft day, but Sheppard seems unlikely.
Source: Washington Post
http://www.rotoworld.com/content/home_NFL.aspx