practice and Menelik Watson may need to start in his place Sunday.

ALAMEDA, Calif. - The Oakland Raiders placed starting middle linebacker Nick Roach on season-ending injured reserve Wednesday after he was unable to recover from a concussion in the preseason.Roach originally got hurt Aug. 22 in the third exhibition game against Green Bay. He returned to practice Sept. 3 on a limited basis but only took part in individual drills and he was never able to be cleared for contact. Now he is done for the season.Its certainly a blow, no question about it, interim coach Tony Sparano said. Nick was one of our defensive leaders. Hes a guy that we rely an awful lot on. Its one of the body blows that goes on in our business.Roach was supposed to be the quarterback of the defence and his absence has played a big role in Oaklands early struggles. After playing every defensive snap in his first year in Oakland in 2013, Roach has been unable to make it on the field this year.After consulting with doctors, Sparano said the team had no indication of when Roach would be cleared to play, leading to the decision to shut him down.It was certainly going to take a little while longer and it was open ended at the end of it, Sparano said.The Raiders (0-4) have been plagued by miscommunication and alignment issues on defence without their signal caller. Oakland has the second-worst run defence in the NFL through four games with Miles Burris and Kaluka Maiava sharing the duty at middle linebacker.Roach is Oaklands second linebacker to be shut down for the season this week. Maiava was placed on injured reserve Tuesday with a hamstring injury, leaving Burris as the starting middle linebacker on Sunday against San Diego.I bounce things off Nick all the time and I still will, Burris said. Hes still going to be around. Hell still be just as big a part of this team because hell be helping everybody out. Nick sees football. He has a great football mind. He sees things that a lot of people cant see on the field so that will be big.The Raiders got some positive news at the position with outside linebacker Sio Moore back at practice Wednesday after missing the past two games with an ankle injury.Moore was limited at practice but his return will provide a boost to the defence.When youre not out there fighting every day, you feel sick to your stomach, Moore said. I just wanted to be out there doing my part to help, doing everything I can.The Raiders signed Jamar Chaney on Wednesday to replace Roach on the roster. Chaney is in his fifth season in the NFL and was cut in training camp this summer by Denver. He started 23 games from 2010-12 in Philadelphia, including all 16 in 2011, and played one game last season with Atlanta.Chaney has 161 career tackles with one sack, three interceptions, 12 passes defenced and one forced fumble.The Raiders had claimed linebacker Ray-Ray Armstrong off waivers from St. Louis on Tuesday. Armstrong joined St. Louis as an undrafted free agent out of Miami in 2013 and played all 16 games as a rookie. Armstrong has played four games this season and has been almost exclusively used on special teams.NOTES: QB Derek Carr was limited at practice after hurting his left knee and ankle before the bye but is confident he will be able to play Sunday. ... RT Khalif Barnes (quadriceps) did not practice and Menelik Watson may need to start in his place Sunday.___Online:AP NFL website: www.pro32.ap.org and www.twitter.com/AP_NFL Timothy Fosu-Mensah Jersey . Martin Reway and David Griger both recorded four points with a goal and three assists each. Mario Lunter, Daniel Gachulinec and Stanislav Horansky also scored for Slovakia (1-0). Dominik Kahun had both goals for Germany (0-2), who lost its opening match to Canada 7-2 on Thursday. Marcus Rashford Jersey . Gaborik was acquired in a trade with Columbus on Wednesday and skated on the top line with centre Anze Kopitar and right-winger Justin Williams. "We created some things," said Gaborik, who logged 16:38 of ice time. http://www.jerseymanchesterunitedsoccer.com/womens-juan-mata-manchester-united-jersey/ . Fognini won 7-5, 6-2, 6-2 after Argentinas Carlos Berlocq had beaten Andreas Seppi 4-6, 6-0, 6-2, 6-1 on the outdoor clay surface. Doubles are set for Saturday with reverse singles on Sunday to decide which team reaches the quarterfinals. Paul Pogba Jersey . Jamies number grades given are out of five, with five being the best mark. Darcy Kuemper, Minnesota (5): He was calm, poised, and looked comfortable all game. Marcos Rojo Jersey .com) - Wimbledon runner-up Eugenie Bouchard notched a win, while second-seeded two-time champion Ana Ivanovic, third- seeded Australian Open runner-up Dominika Cibulkova and fifth seed Sabine Lisicki all exited the draw at the Generali Ladies Linz tennis event.MADRID - Porto is in elite company after an unbeaten start to the season and hopes to keep that record intact Wednesday on a tricky Champions League trip to Athletic Bilbao for a Group H game.Like Chelsea, Paris Saint-Germain, Bayern Munich and Borussia Moenchengladbach, Porto has yet to taste league defeat.It is also undefeated in Europe this season, but has a poor record historically for away matches in Spain.Elsewhere, Shakhtar Donetsk hosts BATE Borisov.Here are some things to know about Wednesdays games:___HOME FROM HOMEPorto is on top of Group H with seven points from three matches.Coach Julen Lopetegui knows Bilbao well. He was born nearby and played as a goalkeeper for its archrival Real Sociedad and at regional club Logrones.His knowledge of Bilbao will be needed to help Porto buck a poor record in Spain.This shows it has five wins and 14 defeats from 21 matches.Lopeteguis team was eliminated from its last two European campaigns by Spanish opponents Sevilla and Malaga.The coach has included Brazilian attacking midfielder Evandro and goalkeeper Ricardo Nunes who have returned to fitness.dddddddddddd__WITHOUT ADURIZBilbao has one point on its return to the Champions League.The Basque team opened with a goalless draw against Shakhtar Donetsk and then lost to BATE Borisov and at Porto.Striker Aritz Aduriz will be out with a torn a muscle in his left leg. His goal in Bilbaos 1-0 win over Sevilla prevented Andalucian club from topping La Liga instead of Real Madrid.___SHAKY SHAKHTARShakhtar has won the Ukrainian title for the last five seasons, but is struggling this time. It is five points off the lead following Fridays 2-1 defeat to Metalurh Donetsk.The club plays in exile in Lviv due to the Ukraine crisis. It has an impressive record in this group. A win and two draws place it second on five points. It thrashed BATE 7-0 away two weeks ago.___CRUISING BATEBATE is cruising toward a ninth straight Belarusian title and is top of the table after beating Dynamo Minsk. That win stretched its unbeaten run in the domestic league to 28 matches. 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