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SANTA CLARA – Running back LaMichael James sustained a dislocated left elbow during 49ers practice on Sunday and could miss about a month of action, a source told CSNBayArea.com.
James was injured during a routine blitz pickup drill. He immediately dropped to the ground after his collision with linebacker Michael Wilhoite and was in extreme pain. He was carted off the field to the 49ers locker room.
The 49ers, who opened training camp with a strong stable of running backs, have seen their depth reduced. On Friday, Kendall Hunter sustained a torn ACL in his right knee.
In October, 2011, James sustained a dislocated right elbow against Cal. He returned to action 23 days later.
James entered training camp competing for a role in the 49ers’ offense. He is the team’s top return man. James averaged 10.9 yards on 23 punt returns last season.
The 49ers open the regular season in six weeks, on Sept. 7, at the Dallas Cowboys.
Frank Gore, Carlos Hyde and Jewel Hampton are the 49ers’ only healthy running backs. Marcus Lattimore remains on the non-football injury list as he continues to rehabilitate from a knee injury he sustained in 2012.
“As I watched him through the offseason you could see it getting better every single day,” 49ers coach Jim Harbaugh said of Lattimore. “To ballpark a percentage, that would be hard to do. But it’s not yet 100 and I say that more from a physical aspect than from a mental. When it gets to that point then he has the best chance to compete out there.”