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Indianapolis — Colts quarterback Andrew Luck is in the NFL’s concussion protocol after complaining of concussion-like symptoms after a victory Sunday over Tennessee.

Coach Chuck Pagano says Monday he believes Luck’s concussion occurred in the fourth quarter of the 24-17 win.

The Colts (5-5) host Pittsburgh on Thanksgiving night, leaving little time for Luck to recover.

Indy’s backup quarterback is the rarely used Scott Tolzien.

Pagano said safety Clayton Geathers also is in the concussion program.

Even with Luck healthy and playing pretty well this year, it’s been a struggle. Indy needed fourth-quarter rallies to win its first two games and had to hold off opponents’ comeback bids in each of the last three wins.

Last year, Luck missed nine games with multiple injuries, the last seven because of a lacerated kidney. To help keep him healthy this season, the Colts reduced his workload at practice. But he has been sacked a league-high 35 times.

Luck’s 2015 injuries forced the Colts to rely on four additional quarterbacks to get through a season in which they finished 8-8 and missed the playoffs for the first time since 2011.

Tolzien has two career starts, both in 2013 when he replaced injured Green Bay quarterback Aaron Rodgers. He finished that season 55 of 90 with 717 yards, one touchdown and five interceptions. He hasn’t thrown a pass since.

Arians is OK

Cardinals coach Bruce Arians was in the hospital after feeling ill overnight, the team said.

The Cardinals issued a statement saying the 64-year-old coach was not feeling well Sunday night after returning home from Arizona’s game in Minnesota and his wife took him to the hospital.

The Cardinals said via Twitter on Monday night that Arians has been released from the hospital.

Wide receiver Larry Fitzgerald said he spoke to Arians when the coach still was in the hospital.

“(He) says he is resting comfortably, and that he’s feeling better,” Fitzgerald said. “… He didn’t go into specific details when I talked to him. From what I heard, he just wasn’t feeling well, and being precautionary, he wanted to make sure he was OK.”

Personnel dept.

Dolphins defensive end Jason Jones has been suspended without pay for two games for violating the NFL substance abuse policy.

The suspension reportedly stemmed from Jones’ arrest last offseason for operating a motor vehicle while intoxicated.

In a statement issued through the team, Jones, a former Lion, apologized to his teammates, his coaches and the organization. The Dolphins also released a statement from the organization.

... Bills running back LeSean McCoy is expected to play against the Jaguars this weekend after having surgery to repair a dislocated left thumb.

McCoy was hurt when he fell on his left hand while being pushed out of bounds. He leads Buffalo (5-5) with 716 yards rushing and seven touchdowns, including one scored against the Bengals.

... The Jaguars will be without two starters for the rest of the season after placing veteran tight end Marcedes Lewis and left guard Patrick Omameh (Michigan) on injured reserve.

Lewis injured his right calf in a loss at Detroit on Sunday. Omameh hurt his left foot and will be replaced in the lineup by Chris Reed.

... The Vikings waived running back Ronnie Hillman and promoted rookie defensive end Stephen Weatherly from the practice squad to fill the roster spot.

Hillman, a member of Denver’s Super Bowl-winning team last season, was used sparingly in the eight games he spent with Minnesota after star Adrian Peterson was placed on injured reserve. Hillman rushed 18 times for 50 yards and caught four passes for 43 yards.

... The Falcons signed right tackle Ryan Schraeder to a five-year contract extension.

Schraeder won a starting job in 2014. The Falcons signed the 6-foot-7, 300-pound Schraeder as a college free agent from Valdosta State in 2013.

... Bears linebacker Jerrell Freeman was suspended for violating the league’s performance-enhancing drug policy.

Freeman was suspended for four weeks and is eligible to return to practice Dec. 19 to prepare for the Dec. 24 home game against Washington. Freeman, in his first year in Chicago after signing as a free agent, leads the Bears with 69 tackles and with 22 assists.

Last week, wide receiver Alshon Jeffery was suspended four games for the same violation and will be eligible to return for the Dec. 18 game against Green Bay.

... Seahawks safety Earl Thomas and cornerback DeShawn Shead both have first-degree hamstring strains that will likely require a recovery period of 10 to 14 days

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