EDEN PRAIRIE, Minn. -- Josh Freeman has a concussion and Minnesota Vikings coach Leslie Frazier says he will likely turn the offense back over to Christian Ponder for the game against Green Bay on Sunday night.
Frazier says Freeman showed up to the facility after his first start on Monday night with concussion-like symptoms. Freeman has to go through a battery of tests to get clearance to play again, but Frazier thinks that it will be very difficult for that to happen on a short week.
That means Ponder is back in after losing his starting job a month ago. Ponder started the first three games, all losses for the Vikings.
The Vikings signed Freeman two weeks ago, and he struggled mightily in his debut against the Giants.
Browns: Weeden benched
BEREA, Ohio -- It's backup Jason Campbell's turn to start at quarterback for the Browns.
Coach Rob Chudzinksi benched struggling starter Brandon Weeden and will go with Campbell on Sunday against the unbeaten Kansas City Chiefs. Campbell is the third QB to start in eight games for Cleveland, following Weeden and Brian Hoyer, who sustained a season-ending knee injury on Oct. 3.
"It's a tough decision," Chudzinski said. "I believe this is in the best interest of the team, and ultimately and gives us the best chance to win. I'm excited to see what Jason will do with this opportunity."
Campbell will be the 20th quarterback for the Browns since they returned as an expansion team in 1999. He'll make his first start for Cleveland against one of the NFL's best defenses. The Chiefs lead the league with 35 sacks.
Weeden, who began the season as Cleveland's starter before he sprained his thumb and was replaced by Hoyer, played poorly in losses to Detroit and Green Bay. He completed just 17 of 42 passes against the Packers.
Bills: Spiller uncertain for Sunday
ORCHARD PARK, N.Y. -- Buffalo Bills coach Doug Marrone is uncertain whether running back C.J. Spiller will play at New Orleans on Sunday.
Marrone on Wednesday says he's considering sitting Spiller to give his sore left ankle time to heal. He added a decision won't be made until later this week.
Spiller hasn't missed a game, but his playing time and production have been limited since he was hurt against Baltimore on Sept. 29. Buffalo's most dynamic threat has managed just 24 carries for 122 yards and a touchdown in his past three games. That includes a season-low six carries for 11 yards in a 23-21 win over Miami last weekend.
Spiller insists he'll be ready, saying his ankle feels "10 times better" than it did last week.
Giants: Baas on injured reserve
EAST RUTHERFORD, N.J. -- The New York Giants have placed starting center David Baas on injured reserve after he sustained his third injury this season.
Baas hurt his left knee for the second time in 2012 on the final play of the opening series in the Giants 23-7 win over the Minnesota Vikings, their first victory of the season. The nine-year veteran hurt the knee in the preseason and also suffered a neck injury that caused him to miss three other games. He played in only three of the seven games.
Third-year pro Jim Cordle will replace Baas, who is in his third season with New York.
Baas re-injured his knee on Monday night when he was leg-whipped by a linebacker. He is the second starting offensive lineman to go on injured reserve. Right guard Chris Snee was lost for the season with a hip injury on Oct. 4.
Jaguars: Sticking with Henne
BAGSHOT, England -- The Jacksonville Jaguars are sticking with quarterback Chad Henne for Sunday's game against the San Francisco 49ers.
Coach Gus Bradley says the Jaguars "feel good about what Chad has done the last few weeks" and "we just want to continue to build on that."
Henne threw for 318 yards in a 24-6 loss to San Diego, a second straight 300-yard performance. Blaine Gabbert "should be No. 2," according to Bradley.
Bradley says wide receivers Ace Sanders and Stephen Burton and defensive lineman Jeremy Mincey have been cleared to play after being limited by injury.
Wide receivers Cecil Shorts and Justin Blackmon did not practice Wednesday but will be available.
Jacksonville is 0-7 going into the second NFL International Series game at Wembley Stadium this season.