NFL report: Colts’ Andrew Luck may have concussion

The Indianapolis Colts’ second straight win may have cost them quarterback Andrew Luck, who entered the concussion protocol Monday after complaining of concussion-like symptoms following Sunday’s 24-17 victory over Tennessee.

The surprising news came a little more than 24 hours after Coach Chuck Pagano told reporters the Colts had no significant injuries from the game. Pagano said Monday he believed the injury occurred in the fourth quarter, but couldn’t cite a specific play.

The Colts (5-5) host Pittsburgh on Thursday night, leaving little time for Luck to recover. If he can’t play they will likely go with backup Scott Tolzien, who hasn’t thrown a regular-season pass since 2013.

Arians hospitalized

Arizona Coach Bruce Arians was hospitalized over- night after becoming ill following his return home from the Cardinals’ 30-24 loss at Minnesota. The team said via Twitter that Arians, 64, had undergone tests and was released from the hospital Monday night. The Cardinals, who went 13-3 last season, are 4-5-1 this year.

Etc.

Seattle running back C.J. Prosise suffered a fractured shoulder blade Sunday against Philadelphia and there is no timetable for his return. Seahawks starting safety Earl Thomas and starting cornerback DeShawn Shead have first-degree hamstring strains and could miss 10 to 14 days. . . .

Buffalo running back LeSean McCoy is expected to play this week against Jacksonville despite having had surgery for a dislocated left thumb suffered during Sunday’s win over Cincinnati. . . .

Miami defensive end Jason Jones was suspended two games for violating the NFL’s substance abuse policy. . . .

Chicago linebacker Jerrell Freeman was suspended four weeks for violating the league’s performance-enhancing drug policy. . . . Jacksonville put starting tight end Marcedes Lewis, an 11-year veteran from UCLA, on injured reserve because of a right calf injury. . . .

Cincinnati running back Giovani Bernard suffered a torn anterior cruciate ligament Sunday against Buffalo and is out for the season.