With Rob Kelley dealing with multiple injuries to his left knee, the Redskins auditioned several free agent running backs today. According to ESPN’s Field Yates (via Twitter), the team worked out Ronnie Hillman and Daryl Richardson.

Coach Jay Gruden confirmed earlier today that Kelley suffered a high ankle sprain and an MCL sprain. The 25-year-old is set to miss several games, leaving the team with only a pair of healthy running backs in Samaje Perine and Chris Thompson. The three running backs have each had an opportunity to establish themselves atop the depth chart this season, with Thompson leading the way with 771 all-purpose yards.