ORCHARD PARK, N.Y. -- Thad Lewis is out and Jordan Palmer is in following the Buffalo Bills late preseason shuffle of backup quarterbacks. Palmer was signed Tuesday, two days after being cut by the Chicago Bears, where he lost the backup competition to Jimmy Clausen. In five NFL seasons, Palmer has appeared in just four games and completed 10 of 15 passes for 59 yards and two interceptions. Lewis release comes as a surprise after he went 2-3 last year while filling in for injured rookie starter EJ Manuel. Acquired in a trade with Detroit last August, Lewis went 93 of 157 for 1,092 yards passing with four touchdowns and three interceptions. Lewis, however, struggled during training camp and fell behind Jeff Tuel in the competition for the No. 2 job. Coach Doug Marrone said he was disappointed in Lewis play, which led the team reaching the conclusion that Palmer might provide more potential despite having less playing time. "Could Jordan be a better player than Thad? Yes, he could," Marrone said. "And were going to find that out and well make a decision." Marrone said Palmer is expected to get extensive playing time on Thursday, when Buffalo (1-3) closes its preseason hosting the Detroit Lions (2-1). And Marrone said it was premature to suggest that Lewis departure meant Tuel has secured the No. 2 spot for Buffalos season opener at Chicago on Sept. 7. In a separate move, the Bills placed starting linebacker Kiko Alonso on the reserve/non-football injury list. The second-year player is expected to miss the season after tearing a ligament in his left knee working out in Oregon on July 1. After spending much of the past two months rehabbing on his own, Alonso is now working out at the Bills renovated facility in Orchard Park. Palmer is the younger brother of Arizona Cardinals starter Carson Palmer. He was selected by Washington in the sixth round of the 2007 draft, but failed to make the Redskins roster. Palmer then spent three seasons in Cincinnati and another in Jacksonville before signing with the Bears. Despite his lack of playing time, Palmer has developed a reputation for mentoring quarterbacks. Earlier this year, he oversaw Blake Bortles pre-draft workout during Central Floridas pro day. Bortles was selected third overall by Jacksonville. Palmer is also familiar with Manuel. Palmer was an assistant and worked with Manuel at former quarterback Trent Dilfers camp three years ago. "Its great to be reunited with him," Palmer said. "Im here to compete, and Im here to serve and help in any way I can." The backup spot in Buffalo has been unsettled since Marrone took over last year. And the latest shuffle leaves Marrone and general manager Doug Whaley open to being second-guessed as to why they failed to add an experienced veteran this off-season. Last season, injuries to Manuel (knee) and veteran backup Kevin Kolb (season-ending concussion) led to the Bills scrambling to fill the position. They signed Matt Leinart, who was cut after struggling in his lone preseason appearance, acquired Lewis and signed free agent Dennis Dixon, who spent last year on the teams practice squad. The Bills stuck with Lewis and Tuel as their backups this off-season with the expectation both can grow and develop because of their familiarity with receivers and the offensive system. Buffalos offence has lacked finish this preseason no matter whos been at quarterback. The Manuel-led starters combined for four field goals on their first 18 possessions before finally scoring touchdowns on consecutive third-quarter drives in a 27-14 loss to Tampa Bay last weekend. NFL Wholesale Jerseys China . Now he has a complete game. 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Curtis Davies and Robert Koren secured the victory with goals inside 35 minutes of the fifth-round replay against the second-tier side.CHARLOTTE, N.C. -- Al Jefferson is doubtful for Game 4 Monday night against the Miami Heat due to a lingering foot injury, according to Bobcats coach Steve Clifford. Jefferson, the teams leading scorer and rebounder, has been hobbled since straining the plantar fascia in his left foot in the first quarter of Game 1. He didnt participate in Mondays shoot around. "Hes not close to where he was for the last two games," Clifford said. Clifford said in Game 3 Jeffersons foot got worse as the game progressed and having only one day off in between games didnt help his chances of being ready for Game 4. Jefferson hobbled noticeably Monday as he left the gym after watching teammates shoot around in practice. Jefferson said he feels as if hes "walking on needles." "I wouldnt wish this pain on anyone," Jefferson said. "Its the worst pain Ive ever dealt with in my career." Jefferson wouldnt rule himself out, saying hes taking things hour-to-hour. "Im seeing how its going to feel and go from there," Jefferson said. Miami leads the series 3-0 and can close out the Bobcats with a win Monday night in Charlotte. Clifford said Bismack Biyombo is expected to start for Jefferson. That represents a major dropoff in production, particularly from the offensive end. Jefferson averaged 21.8 points and 10.8 rebound per game in his first season with the Bobcats, while Biyombo has never scored more than 14 points in a game..dddddddddddd. Biyombo has only played 15 minutes in the playoffs and scored one point. Jeffersons teammates said they respect his ability to get on the floor the past two games. "He has given us all he can," point guard Kemba Walker said. "And I think down to a man we appreciate his effort. Hes been nothing but great for us. He has been playing really well and hes not 100 per cent." Said Clifford: "I know how badly Al wants to play. The most upset person about this is him. So its frustrating, but again its part of pro sports." Clifford said the Bobcats will play more five-man basketball using pick and rolls, rather than relying on Jefferson in the low post. Walker, the teams second-leading scorer, will be relied upon to help pick up the slack in Jeffersons absence. "We have to find better ways for Kemba to be on the attack," Clifford said. Jefferson said its frustrating that he worked so hard all season only to injure the foot in the first quarter of the playoffs. "This season has been a great season for all of the things we have done so far," Jefferson said. "We are going into the game tonight trying to win... Regardless of what may happen it has been a wonderful season and guys have a lot to be proud of for the things we have done this season. But we cant take any steps back. We have to continue to build and get better." Jefferson said he wont need surgery after the season. ' ' '