The Redskins have agreed to terms on a five-year deal worth roughly $27 million with guard Derrick Dockery. The deal includes $8.5 million in guaranteed money and $11.5 million paid over the first two years, according to a league source. Dockery hit the market in an abnormal way. The Bills and Lions had agreed to a trade on Thursday with Detroit picking up the rest of Dockery's 7-year, $49 million contract. However, the Buffalo failed to file the necessary paperwork with the NFL, according to a league source, and, rather than pay Dockery $4.5 million for this year, the Bills allowed him to become a free agent.