PITTSFORD, N.Y. -- Buffalo Bills coach Rex Ryan struck a less optimistic tone Saturday about a left knee injury to rookie linebacker Reggie Ragland, backing off his belief that Ragland avoided ligament damage when he was hurt in Fridays practice.Im not real sure [about ligament damage], Ryan said. I guess I was just so hopeful theres not going to be ligament things. My understanding is that as you get going, your leg is so tight, theyll fight it. You dont really get a true look of that. So as we mentioned, we got to wait for that swelling to go down.I know every Bill fan out there is hoping for the best, and thats certainly what were doing, but there is concern.A source said that more could be known about the severity of Raglands injury as soon as Sunday. With uncertainty over Raglands availability, Ryan said the Bills will work out free-agent linebackers Sunday, although he did not identify which players would be visiting.Ragland, the Bills second-round pick in Aprils draft, was pursuing running back Reggie Bush toward the sideline on a play during Fridays practice when he pulled up limping and immediately went to the ground.It just looked odd, Ryan said Friday. It wasnt hit. None of that stuff. So sometimes those can be the worst ones, so Im hoping -- we just have to keep our fingers crossed and hope hes fine.The Bills traded up to select Ragland with the No. 41 overall selection. General manager Doug Whaley said the team considered selecting the Alabama linebacker with its No. 19 pick in the first round, but Buffalo drafted Clemson defensive end Shaq Lawson instead.Lawson is expected to miss the first several games of the regular season after undergoing shoulder surgery this spring.Ryan already had named Ragland as the expected starter at inside linebacker alongside Preston Brown. Veteran Zach Brown replaced Ragland with the first-team defense for the remainder of Fridays practice.Id rather not think about it, but were in capable hands, Ryan said of the possibility of losing Ragland for an extended period. We have a couple of pretty good inside backers, guys that are doing well right now -- Zach Brown and Randell Johnson -- so one guy would have to step up.In addition to Ragland, the Bills also are dealing with injuries to inside linebackers Kevin Reddick, who Ryan said Saturday is expected to miss multiple weeks, and Jamari Lattimore, who Ryan said could return as soon as Monday. Peyton Manning Youth Jersey . What general manager Dave Nonis called "short and productive" negotiations ended with Kessel signing a US$64-million, eight-year contract on Tuesday. Dennis Smith Youth Jersey . Jordan Lynch, the all-purpose Heisman Trophy finalist from Northern Illinois, failed to make it into that exclusive club. http://www.thebroncosstoreonline.com/Youth-Dre-Mont-Jones-Broncos-Jerseys/ . "No difference at all," chirped U.S. roommate and linemate James van Riemsdyk. "Its still the same cranky Phil. Joe Flacco Jersey . 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ENGLEWOOD, Colo. -- Four days after declaring Trevor Siemian was still his starting quarterback, Broncos coach Gary Kubiak declined Friday to name Siemian the starter for the Broncos game against the Atlanta Falcons this weekend.Kubiak said he wants to see Siemian throw again Saturday to make sure hes healthy enough to play again after leaving last weekends game with a bruised left (non-throwing) shoulder.Kubiaks other option is giving rookie Paxton Lynch his first start against the leagues 30th-ranked defense, one that has an injury epidemic at linebacker.Siemian was knocked from the game when he was spun to the turf on a sack last weekend and Lynch played well in relief , helping the Broncos beat the Buccaneers 27-7.Kubiak said Siemian made good progress Friday but added that hell likely put him through a more strenuous workout on Saturday than players usually go through on the eve of a game.Siemian is 4-0 as the Broncos starter. The Falcons (3-1) bring the leagues top offense to Denver but a defense thats next-to-last against the pass and 30th overall, ahead of only New Orleans and Oakland.Kubbiak said the determining factor in giving Siemian the start is me watching him work, watching him make the full throws.dddddddddddd We moved him around a little bit today, which is something we didnt do yesterday. So, well just go back and look at the big picture. Well probably work him a little bit more tomorrow than we normally would a player on a Saturday just to get a look. But hes made progress every day.The Falcons depleted defense might allow the Broncos to lean toward Lynch, their first-round draft pick, if Siemian isnt 100 percent.The Falcons ruled out three injured linebackers Friday, including starters Deion Jones and DeVondre Campbell.The Broncos have a quick turnaround because they play at San Diego next Thursday, but Kubiak said that wont play a role in his QB decision.---AP NFL website: www.pro32.ap.org and AP NFL Twitter feed: www.twitter.com/AP-NFL---Follow AP Pro Football Writer Arnie Melendrez Stapleton on Twitter: http://twitter.com/arniestapleton . ' ' '