Daryl Richardson was listed as the "projected starter" at running back for the Rams heading into training camp on the team's official website.
Under the heading "key contributors," the Rams also listed Isaiah Pead and rookie Zac Stacy.
Richardson likely has the edge as the starter based on experience. He outplayed Pead in their rookie season in 2012, and this will be Stacy's first season in the NFL.
Richardson had 98 carries for 475 yards as Steven Jackson's backup last year. Pead, meanwhile, had just 10 carries for 54 yards. He is also suspended for Week 1 for violating the NFL's substance abuse policy.