The Redskins released a statement Saturday announcing that they have placed cornerback Phillip Buchanon on the ReserveInjured list and added cornerback Brandyn Thompson to their 53-man roster.Buchanon (5-11, 190) was in his 10th NFL season and his second with the Redskins. Buchanon has played in 123 career NFL games, including two during the 2011 season.Thompson (5-10, 177) appeared in two games in 2011. Thompson saw action at cornerback in the Redskins Week 2 win against Arizona, and he appeared on special teams in Washingtons Week 3 game against Dallas.Phillip Buchanon