ORCHARD PARK, N.Y. -- Furman offensive tackle Joel Bell is among 10 undrafted rookie free agents signed by the Buffalo Bills. Listed at 6-feet-7 and 318 pounds, Bell was a three-year starter in college and projected to be a late-round pick in last weekends NFL Draft. The Bills opened their rookie minicamp Friday and also signed another offensive lineman, Colgates Nick Hennessey. Southern California defensive end Gerald Washington was among the notable additions. The 27-year-old spent four years of service in the Navy out of high school. Originally a tight end, Washington was converted to defensive end in his first season at USC in 2006. The Bills also signed: defensive linemen John Faletoese (UC-Davis), Ventrell Jenkins (Kentucky), David Lindquist (Illinois), tight end Travis McCall (Alabama), linebacker Ashlee Palmer (Mississippi), defensive back Lydell Sargeant (Penn State) and punter Dan Urrego (Portland State).