ALAMEDA, Calif. -- Raiders cornerback David Amerson is expected to play in Sundays game against Tennessee, one week after suffering a mild concussion.Amerson has been limited all week in practice after getting temporarily knocked out in the fourth quarter against the Falcons but told reporters Thursday he feels fine and is ready to play.I feel fine good. I feel normal, ready to go, Amerson said. It wasnt really a blow to the head, I got kind of hit under my chin so it was more like getting knocked out. I was knocked out for a minute. With the trainers being on their job they were being very cautious of what was going on, what my steps were after that happened. Ill be cool.Players with concussions are required by the NFL to pass a battery of tests before being cleared to play. According to a Raiders spokesman, Amerson is still in the protocol but is able to do some physical work in practice.Thats key because the Raiders defense needs all the help it can get to stop an early season onslaught after giving up 1,035 yards in the first two games. According to Pro Football Reference, Oakland is the first team since the 1967 Falcons to allow 500 yards or more in each of the first two games.The Raiders rank 31st in points allowed and last in total defense and pass defense.Much of the problem has centered around Oaklands secondary, which underwent a makeover in the offseason. Cornerback Sean Smith was signed to a $38 million contract, free safety Reggie Nelson was lured away from Cincinnati as a free agent and the team used the 14th overall pick in the draft on safety Karl Joseph.Yet both Drew Brees of the Saints and Matt Ryan of the Falcons had field days while finding gaping holes in the Raiders coverages. The two quarterbacks combined to pass for 819 yards and seven touchdowns while being intercepted once.Joseph has played exclusively on special teams but will see time on defense this week against the Titans.We have high expectations for Karl, defensive coordinator Ken Norton Jr. said. Practice is that place where you get better. You really have to be competitive in practice. We dont know exactly how much hes going to play, but youre going to see him play.Amersons concussion was his third since entering the NFL as a second-round pick by Washington in 2013. He was injured late in the game while trying to make a diving stop on a 13-yard touchdown by Atlantas Tevin Coleman.The blow temporarily knocked Amerson out, and after being examined by trainers, he was pulled from the game. Amerson appeared fine afterward but was put in the concussion protocol as a precaution.At a time when concussions are forcing some NFL players into early retirement, Amerson said he hasnt even thought about it.Ive been kind of fortunate, he said. Ive had some concussions but I dont think Ive had any that have been very severe or crazy to where I think its career-ending. Its just been little minor stings, maybe getting knocked out a play or something like that. Im fine. I dont feel any different.Game notes Right tackle Menelik Watson (groin), center Rodney Hudson (knee), guard Gabe Jackson (knee), kick returner Taiwan Jones (knee), defensive lineman Jihad Ward (hip) were limited in practice for a second straight day. Rookie defensive lineman Darius Latham (concussion) was also limited after sitting out Wednesday. Tackle Austin Howard (ankle) and backup tackle Matt McCants (knee) did not practice.---Online:AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFLDrew Sample Jersey . 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Dallas, Texas ?- Quarterback Austin Allens five-yard run in the second overtime period was the last of a series of big plays during an electric fourth quarter and overtime that led the Arkansas Razorbacks to a 41-38 upset win at TCU on Saturday. For winning on the road against a ranked opponent for the third straight time, and for ending TCUs 14-game home winning streak that was the third-longest in the nation, Arkansas earned the Football Writers Association of America National Team of the Week honor for games of the weekend of Sept. 10.Arkansas (2-0) fell behind 28-20 late in the fourth quarter after TCU rallied to score 21 unanswered points. But with 1:49 left, Allen was a perfect 4-for-4 passing on the ensuing drive, including a 16-yard score to wide receiver Keon Hatcher. On the two-point conversion to tie, Hatcher completed a nifty reverse-pass to Allen in the end zone with just over a minute to play.The Razorbacks then weathered a TCU drive when Dan Skipper blocked what would have been a 28-yard game-winning field goal to send the game into overtime. After trading touchdowns, TCU kicked a field goal on its second overtime possession, setting up Allens game-winning run.We want to keeep you in your seats for four quarters and some, Arkansas head coach Bret Bielema said.dddddddddddd. For college football, I think this is everything you could ask for when you talk about the environment we had here tonight, and the competition that was on the field. We wanted to play our type of football. I think the part I stressed to our guys all week was code red. Being able to play at a heightened awareness on the road. They bought into it all week and persevered.Arkansas has now won four straight and eight of its last nine games dating back to last season, including road wins at No. 18 Ole Miss, No. 9 LSU and No. 15 TCU. Over the programs last 19 games under Bielema, the Razorbacks have won five games against ranked teams while unranked.This is the third time for Arkansas to earn National Team of the Week honors and the first time since 2006. The Football Writers Association of America has named a national team of the week since the 2002 season. Members of the 12-person FWAA All-America Committee - plus one fan