Francisco’s depth in the secondary also remains an issue. Strong safety Jaquiski Tartt is doubtful and is likely to miss his second consecutive game with a shoulder injury. He didn’t practice Friday.Antone Exum would start in Tartt’s place; Exum made nine tackles with a sack and a forced fumble agains

PITTSBURGH (AP) — The Pittsburgh Steelers will head to Oakland without running back James Conner.Coach Mike Tomlin said Tuesday that Conner is dealing with a sprained left ankle and will not play when the AFC North leaders take on the last-place Raiders.Conner Jamel Dean Jersey , who is second in the NFL in rushing touchdowns (12) and fifth in yards rushing (909), suffered the injury in the fourth quarter of a 33-30 loss to the Los Angeles Chargers. The team initially believed Conner was dealing with a leg contusion, but said the injury turned out to be more serious than originally thought.The Steelers (7-4-1) will turn to Stevan Ridley and rookie Jaylen Samuels when they face the Raiders. Ridley, an eight-year veteran, has 56 yards on 18 carries this season. Samuels, a fifth-round pick, has seen his playing time increase of late as the primary option of relieving Conner.Samuels has 12 carries for 31 yards this season and has proven to be a capable receiver out of the backfield. Samuels has seven receptions for 54 yards D.K. Metcalf Jersey , including a game-tying 10-yard catch-and-run late in the fourth quarter against the Chargers shortly after Conner went down.“We’ve got a great deal of confidence in Ridley, got a great deal of confidence in Jaylen, particularly in Jaylen, who has been on the rise last couple weeks,” Tomlin said.Tomlin said the team is planning on taking a committee approach to the running game while Conner is out, but didn’t rule out turning to one back. Pittsburgh addressed the depth issue presented by Conner’s injury by promoting Trey Edmunds from the practice squad. Edmunds’ younger brother, Terrell Nick Bosa Jersey , is a rookie safety for Pittsburgh. Tomlin expected Trey Edmunds to be available for work on special teams.The Steelers placed wide receiver Justin Hunter on injured reserve after Hunter injured his shoulder diving for an overthrown pass by quarterback Ben Roethlisberger against the Chargers.The injury will give rookie James Washington a chance at moving back up the depth chart. The Steelers sat the second-round pick, who has eight receptions for 77 yards and has struggled with what Tomlin likes to call “detail work,” against Los Angeles in favor of Hunter.“Sometimes you get knocked down,” Tomlin said. “You’ve got to get in the lab and work. A lot of times that’s done in obscurity. There’s not a lot of time on the shelf for James, it’ll be exciting to watch him get back on this week and take advantage of someone else’s misfortune.”Pittsburgh does not plan to alter its travel itinerary heading to Oakland (2-10), where the Steelers have not won since 1995. The team will fly out on Saturday as usual. Though Tomlin acknowledged Pittsburgh’s issues when heading west — the Steelers are winless in their past three trips to Oakland, for example — he doesn’t believe his team’s issues in the Pacific time zone have anything to do with logistics.“We could spend a lot of time talking about history http://www.cardinalscheapstore.com/byron-murphy-jersey-cheap ,” Tomlin said. “My concern is this group, this week.”NOTES: WR Ryan Switzer is in the concussion protocol but Tomlin is optimistic Switzer will be available against the Raiders. … RT Marcus Gilbert (knee) is “working his way back” according to Tomlin. Gilbert hasn’t played since getting hurt in Cincinnati on Oct. 14. … Long snapper Kam Canady is dealing with a sprained knee. … FB Roosevelt Nix (shoulder) and LB Anthony Chickillo (ankle) were also banged up against the Chargers but could play in Oakland. SANTA CLARA, Calif. (AP) — The San Francisco 49ers still aren’t certain about the availability of their top two running backs for Sunday’s game against the Los Angeles Chargers.Matt Breida, among the NFL leaders in rushing, and Alfred Morris both were limited in practice Friday and are listed as questionable. That’s an obvious concern for an offense preparing for its first full game without franchise quarterback Jimmy Garoppolo, who suffered a season-ending knee injury last week against Kansas City.Breida hyperextended his right knee while planting to make a cut in the first half against the Chiefs. He returned later in the game, but the second-year back out of Georgia Southern hasn’t shown considerable improvement in practice since then.“He’s been up and down a little bit this week Dre'Mont Jones Jersey ,” coach Kyle Shanahan said Friday. “He got a little bit more (practice time Thursday). We kept him limited just trying to manage the wear and tear. But ‘questionable’ is better than ‘doubtful,’ so we’re hoping it works out.”Morris also is slowed by a knee injury. While he brings power running between the tackles, Breida is the game-breaking threat. His 274 yards are tied for second in the league with the Dallas Cowboys’ Ezekiel Elliott behind the Rams’ Todd Gurley.But Breida has carried the ball just 32 times, giving him an average of 8.6 yards per carry that’s best in the NFL.His emergence has helped soften the blow of the 49ers losing expected starting running back Jerick McKinnon to a torn ACL shortly before the season opener.Breida had said he initially feared a much more serious injury.“It’s gonna be a game-time decision,” Breida said of his availability against the Chargers. “I gotta feel comfortable. I’m not at 100 percent right now. .“I know I have to be smart, too, and understand that if I’m not gonna be able to cut off it and not gonna be able to run http://www.cardinalscheapstore.com/zach-allen-jersey-cheap , then why go out there and get myself hurt and hurt the team at the same time?”San Francisco’s depth in the secondary also remains an issue. Strong safety Jaquiski Tartt is doubtful and is likely to miss his second consecutive game with a shoulder injury. He didn’t practice Friday.Antone Exum would start in Tartt’s place; Exum made nine tackles with a sack and a forced fumble against Kansas City.“Exum’s here for a reason,” Shanahan said. “I thought he got a lot better as the game went. I think he made some mistakes early in the game, and I think once he played a little bit more, it slowed down for him.”Free safety Adrian Colbert is questionable with a hip injury. Should he not be available Sunday, rookie D.J. Reed likely would take his spot.The 49ers already were without veteran cornerback Richard Sherman, expected to miss at least two games with a strained calf.NOTES: Receiver Marquise Goodwin (quad) and right guard Mike Person (knee) participated fully in Friday’s practice and are expected to play against the Chargers. Reserve guard Joshua Garnett (toe) remains out.