Raiders' tackle Donald Penn moves from left to right side
The Official #70 Donald Penn Fan Page
Donald Penn retires as a Raider
Raiders agree to deal to re-sign LT Donald Penn – Los Angeles Sentinel
Ranking the 2014 Impact of the Oakland Raiders' Free Agent
Oakland Raiders re-sign OT Donald Penn - ESPN
Raiders agree to deal to re-sign LT Donald Penn – Los Angeles Sentinel
Raiders, Donald Penn mutually part ways
Donald Penn retires as a Raider
Donald Penn retires as a Raider