Jenkins signed a one-year deal with Washington on Monday, Ian Rapoport of NFL Network reports.
Jenkins worked out with the team on Monday morning and impressed enough to land a spot on the roster with just two weeks until the season begins. The signing could mean that Jerrell Powe's heart condition may be more serious than originally thought, as he was expected to miss a week after he was diagnosed with heart arrhythmia at the beginning of August. Jenkins recorded 15 tackles and three sacks last season with the Giants.