INDIANAPOLIS -- The Indianapolis Colts second straight win may have cost them quarterback Andrew Luck.Luck entered the concussion protocol after complaining about concussion-like symptoms following Sundays 24-17 victory over Tennessee. Coach Chuck Pagano said Monday he believes the injury concussion occurred in the fourth quarter, but couldnt cite which play Luck was injured on.The surprising news came a little more than 24 hours after Pagano told reporters the Colts had no significant injuries from the game. Indy (5-5) hosts Pittsburgh on Thanksgiving night, leaving little time for Luck to recover. If he cant play the Colts will likely go with backup Scott Tolzien, who hasnt thrown a regular-season pass since the 2013 season.Andrew and (safety) Clayton Geathers, pretty much well after we were all done with media and the locker room and things like that, both guys didnt feel right, Pagano said Monday. Both guys went in the training room and saw our docs and both were evaluated for concussions. Both are in the protocol and its up to the docs and trainers to monitor that situation, so thats where thats at.Geathers also entered the protocol after apparently getting hurt on the final defensive play of the game.Even with Luck healthy and playing pretty well this year, its 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.So when Luck was not taking snaps at practice Monday, it wasnt immediately clear whether it was part of the routine or a new injury.After practice, Pagano clarified what had happened -- and the process Luck must undergo before playing again.You have to feel better, you have to take an impact test and pass an impact test, then practice non-contact, then have another day and then take another impact test and be cleared by an independent, he said. Again, that is our trainers and docs that will handle that.The timing couldnt be worse.Indy just moved back into second place in the AFC South and got back into the playoff hunt by stringing together its first winning streak of the season. A third straight win would be a major step forward for a team that has been inconsistent all season.Now, the Colts will probably face an old nemesis, Pittsburgh (5-5), without their star quarterback.The Steelers have won three straight in the series and 13 of the last 15 since 1984, and they just snapped a four-game losing streak with a win Sunday at Cleveland.Its not the first time the Colts have faced this sort of predicament. Lucks 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. And Indy won the final game after signing Josh Freeman and Ryan Lindley as replacement quarterbacks the week of the game.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.But the short week doesnt leave much time for Pagano to fret.He has a limited amount of exposure, but he is a pro, Pagano said. Again, if he has to roll and be the guy then he will do a great job. He prepares really well every single day.---For more NFL coverage: http://www.pro32.ap.org and http://www.twitter.com/AP-NFLBuy Air Max 270 Black . Howard Ganz, an MLB lawyer, said in a letter to U.S. District Judge Edgardo Ramos that Rodriguezs claims do not come "remotely close" to what is needed to overturn an arbitration decision in federal court. Air Max Plus Clearance . The Celtics closed out their first preseason under Stevens on Wednesday night with a 101-97 victory over the Brooklyn Nets, who rested a lot of their lineup including former Celtics Kevin Garnett and Paul Pierce. http://www.wholesalenikeshoesclearance.com/ . Anthony Calvillo, through 20 CFL seasons, was frequently invincible and largely stoic in the heat of competition. But underneath the professional exterior he was, and is, compellingly human. Cheap Air Max Plus China .J. -- Marty Brodeur beat the Pittsburgh Penguins yet again. Cheap Air Max 90 Clearance . Despite dominating possession, Schalke needed an own goal from Nicolas Hoefler for the breakthrough a minute before the interval. The Freiburg midfielder misjudged Jefferson Farfans corner and bundled the ball into his own net. No. 15 Southern California (7-3, 6-2, No. 13 CFP) at UCLA (4-6, 2-5), 10:30 p.m. (ESPN)Line: USC by 12+.Series Record: USC leads 47-31-7.WHATS AT STAKEUSC takes a six-game winning streak into the 86th crosstown showdown for the Victory Bell, while UCLA needs to finish a disappointing season with back-to-back wins to ensure bowl eligibility.KEY MATCHUPUCLA DE Takkarist McKinley vs. USC RT Zach Banner. The Bruins sack machine is having the best individual season on a solid defense, and his ability to pressure QB Sam Darnold could give UCLA a chance to hang in with the Trojans.PLAYERS TO WATCHUSC: LB Porter Gustin. The sophomores disruptive play has been a major recent boost to the Trojans defense, culminating in two sacks last week in their upset of Washington. He already has a team-best 9 + tackles for loss.UCLA: QB Mike Fafaul. The senior backup has filled in capably for injured starter Josh Rosen, setting school records for single-game completions and attempts. A win over USC would be an improbable highlight for the former walk-on.FACTS & FIGURESBoth teams will wear their home jerseys at the Rose Bowl,, as per rivalry tradition.dddddddddddd. ... USC returned to the rankings this week for the first time since its season-opening loss to Alabama. ... UCLA ended a four-game losing streak last week with a home win over Oregon State. ... UCLA coach Jim Mora lost to the Trojans for the first time last year after three straight victories in the crosstown showdown to open his career in Westwood. Two days after USCs 40-21 victory, Clay Helton was named the permanent head coach. ... UCLA LB Jayon Brown is the Pac-12s leading tackler with 9.7 per game. ... The Bruins defense has yielded only eight touchdown passes all season. Darnold has thrown 20 TD passes during USCs six-game winning streak. ... USC is on its longest winning streak since 2008. They havent won the conference or reached the Rose Bowl since. ... USC has lost the last two crosstown showdowns played at the Rose Bowl after winning five of the previous six in Pasadena.---AP college football website: collegefootball.ap.org ' ' '