CHARLOTTE, N.C. -- The injuries continue to mount in the Carolina Panthers backfield. Coach Ron Rivera said Monday that bruising Pro Bowl fullback Mike Tolbert will miss Sundays game against the Baltimore Ravens with a hairline fracture in his left leg and running back Jonathan Stewart will be reevaluated on Friday with a severely sprained right knee. Rivera said while the injuries are another setback for Carolinas struggling running game, he added that the MRIs on the players indicated "nothing is catastrophic -- and thats the best part." Both injuries were sustained in a lopsided 37-19 home loss to the Pittsburgh Steelers on Sunday night. Rivera also said outside linebacker Thomas Davis would be reevaluated on Friday, but wouldnt specify the nature of his injury. Running back was one of the deepest positions on the roster entering the season, but just three weeks in general manager Dave Gettleman could be forced to look outside the organization for help. The Panthers were already dangerously thin in the backfield coming into the Steelers game with starting running back DeAngelo Williams and third-string back Fozzy Whittaker out with hamstring injuries. Rivera said he hopes to get Williams back to practice on Wednesday. The only healthy running back on the roster is undrafted rookie Darrin Reaves, who was promoted from the practice squad on Saturday as an emergency option. Richie Brockel will take over at fullback against the Ravens in Tolberts spot. Carolinas running game ranks 29th in the league, averaging just 72.3 yards per game on the ground. Thats a huge drop off from 2013 when the NFC South champions averaged 126.6 yards on the ground and ran for at least 100 yards in 15 of 16 games. With Stewart starting for Williams, the Panthers failed to establish against the Steelers 29th-ranked run defence. Stewart was limited to 31 yards on five carries. As a team, the Panthers were outrushed 264-42 by the Steelers. "We didnt block good enough, all of us," tight end Greg Olsen said. "Its pretty simple. ... Even when we did get the running game going it seemed like every positive run was negated by a penalty. Weve got to stop hurting ourselves." Rivera said Carolinas running game struggles are due in part to the injuries to quarterback Cam Newton. The NFLs most productive rushing quarterback over the past three seasons with 2,032 yards rushing and 28 TDs has been handcuffed by ankle and rib injuries. In fact, the Panthers didnt call any designed runs for Newton on Sunday night and he was limited to 7 yards on two carries. Newton said he "wasnt asked to run" against the Steelers. Rivera said the Panthers want to limit the number of shots Newton takes on the field. He estimated Newton was hit nine or 10 times by the Steelers, which included three sacks. "We know he is a big part of what we do," Rivera said of Newton, who is Newton is on pace to rush for 384 yards this season -- well behind his career average of 677. "The thing it shows is we cant rely on him all of the time. Now we have to find other answers and other ways to (run the ball) -- and the coaching staff is working on that." When asked if the Panthers can be an effective running team without Newton, Rivera said "were going to have to be." Carolinas leading rusher after three games is Stewart with 88 yards on 29 carries, a 3-yard average. "Right now hes not quite where we need him," Rivera said of Newton. "He will get there. The thing we have to do in the meantime is (everybody else) has to pick it up." Rivera that includes the offensive line, which he said needs to be more physical and "play with more attitude." The Panthers were looking for their first 3-0 start since 2003, the year they went to the Super Bowl. Instead, theyll head into Sunday looking to stay above .500 against another tough, physical AFC North defensive opponent in the Ravens -- a team that beat the Steelers 26-6 just two weeks ago. "Thats the one thing about the NFL: Its a long year," Olsen said. "Were 2-1. Were going to play a very good team next week thats coming off of two back-to-back wins. They beat the team we just lost to pretty good. ... We have to get back and fix our mistakes first before we worry about who were going to play." Mitch Wishnowsky Jersey . They actually finished with a better record in ‘07 than they did in ‘06 but only marginally, going from 61 victories to 66. Deebo Samuel Jersey . The four-time Grand Slam champion has beaten Hantuchova nine straight times, with the Slovaks only win coming when they first played 10 years ago. 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But is it — you use the word financially reasonable — no. Is it possible? Yes.There was a time in Jones quarter century of owning the Cowboys that anything was possible with his biggest stars, even in the salary-cap era. This isnt the same Jones, who showed it last year by releasing franchise sacks leader DeMarcus Ware to clear cap space even though the Cowboys didnt have anyone close to such a dynamic pass rusher.If you just look at it from the standpoint of dollars and cents, it probably doesnt look reasonable, Jones said Thursday when he announced new contracts for coach Jason Garrett, defensive co-ordinator Rod Marinelli and newly promoted offensive co-ordinator Scott Linehan. At the end of the day, you do realize its going to be costly to have both those players.Bryant led the NFL with 16 touchdowns receiving, and has the most in the league going back to 2011. His touchdown total has increased every season.Murray was the leagues runaway leader with 1,845 yards rushing and broke all-time NFL rushing leader Emmitt Smiths franchise record from 1995. He played with a broken hand to complete a full season for the first time in his four-year career.We want to do everything we can to keep this group together, help this group get better and take that next step, Garrett said.He recounted the story of former coach and TV analyst John Madden reacting to Derek Jeters memorable backhand flip that played a key role in the New York Yankees winning a playoff series against Oakland more than a decade ago.They were talking about Derek Jeter, and Madden said Jeter is one of those guys who you pick first and decide what game youre playing next,, Garrett said.dddddddddddd I think about that really every day. Thats a really important concept for our organization — the idea that you want these guys here, whether theyre coaches, players.Since Jones said it would be going too far to suggest that both players are gone, the issue could be which player to keep. The Cowboys can use the franchise tag on one of them, and it would be more expensive on Bryant, perhaps by as much as $5 million.But Dallas could use the tag to buy more time to negotiate a long-term deal with Bryant, who turned down an offer before the 2014 season started. He has since joined Jay Zs Roc Nation, with agent Tom Condon leading his team.With Murrays looming free agency, the debate all season was whether another serviceable back could do the same thing behind a young offensive line considered one of the leagues best.The three first-round picks from the past four years — left tackle Tyron Smith, centre Travis Frederick and right guard Zack Martin — all made the Pro Bowl, and Martin was the first Dallas rookie to make All-Pro since Calvin Hill in 1969.The Cowboys arent expected to pick up the $9 million option on defensive tackle Henry Meltons contract, and cornerback Brandon Carrs $12 million cap hit makes him a likely candidate for a pay cut or a release after he didnt have an interception for the first time in his career.No matter how much wiggle room Jones and the front office can create, he simply doesnt sound like the same owner who was hamstrung by cap problems when he tried to keep his Super Bowl teams intact in the late 1990s.You remember when that cap makes you poor and you wake up and have those days when you dont have the money and dont have the flexibility, Jones said. That dream was out the window, and there you were paying the bills on it.A couple of big bills are coming due, if Jones decides he wants to pay them.___Online:AP NFL website: www.pro32.ap.org and www.twitter.com/AP_NFL___Follow Schuyler Dixon on Twitter at https://twitter.com/apschuyler ' ' '