about the way football deals with concussions

PHILADELPHIA - The Philadelphia Eagles are replacing injured linebacker DeMeco Ryans with Casey Matthews and Emmanuel Acho. That still leaves a big hole.You dont replace the leadership, defensive co-ordinator Billy Davis said. You just dont. Leadership is something that is earned over time. DeMeco has got a lot of pelts on the wall and hes earned it. Hes just that kind of guy. So, youre not going to replace that part of him, but were going to have to replace him (on the field). Its the NFL, the next man has to step up.Ryans was lost for the season when he tore his Achilles tendon Sunday in a 31-21 victory at Houston. Its the second time in five years Ryans season has ended with an Achilles tear. He had the same injury while with the Texans in 2010.Matthews, the teams fourth-round pick in 2011 and Acho, who came in a trade with Cleveland last year, will split the duties in Davis base 3-4 defence.In base, either Matthews or Acho will play the Mike role that Ryans had and be responsible for making the defensive calls. When the team goes to its nickel or dime defences, Mychal Kendricks will move from his Will position to make the calls.We have tons of confidence in both Casey and Acho, Davis said. They can make the calls. They did it all through camp when DeMeco wasnt in, or we gave DeMeco a blow. Theyre both highly intelligent guys. Theyve got a great understanding of the scheme. Theyve both been here for two years and both have a lot of playing time to fall back on in the regular season. So, that part to it well be OK with.Its the part that is DeMeco, the man, and his individual leadership that youre not going to replace.Matthews and Acho both got experience this season when Kendricks missed four games with a calf injury. In their limited time, Matthews has 24 tackles, one for a loss, with a half-sack, two quarterback hurries and a fumble recovery. Acho has 18 tackles.Ryans had 65 tackles, three for a loss, to go with an interception and a fumble recovery.That helped, Matthews said about playing in place of Kendricks. Its a little different now, moving to the Mike and having to make the calls. You have to be more vocal out there.Matthews has played his best football of late and now has the final eight games of the regular season to show he belongs.It will be similar to when Mychal was out, Davis said. The neat part of our inside backers, really within the scheme, is they are kind of interchangeable. So, it will be a similar rotation to when Mychal was out. Well have Casey and Acho handling first and second down duties at the DeMeco spot. Theyll be fine.Matthews knows the role he has to fill. Hes as prepared as hes going to be.Im ready, Matthews said. I felt when Mychal was out, I got better every week. Well take it game by game, and hopefully get more comfortable as we go.Davis is confident as well.Weve got small boxes for everybody and thats kind of the way weve had success in replacing guys, Davis said. Dont ask any one person to do everything DeMeco did, ask a couple to do a small part and really master that small part. Bartolo Colon Jersey . This game was inside. Adrian Peterson was missing. The stage was set for another step toward the playoffs. Mookie Wilson Jersey . They say things like "stress is when you dont know what youre doing" and "I wasnt hired to motivate players, I was hired to coach motivated players." 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It was the latest in a series of head injuries at the World Cup that raised questions about the sideline medical checks. Kramer continued playing for 14 minutes in the first half of the final at Maracana Stadium after taking a heavy blow to the face in a collision with Argentina defender Ezequiel Garay. He was eventually replaced in the 31st minute after slumping to the ground, and the German football federation said he had a suspected concussion. It didnt give any more details. Kramer appeared to be disorientated as he was helped off the field by medical staff. In his absence, Germany went on to beat Argentina 1-0 in extra time to lift the World Cup. "I cant remember very much but it doesnt matter now," he said, shrugging off the injury. "I have to send regards to my grandmother. She has a birthday today and I couldnt reach her." There were worrying head injuries for players earlier in the tournament. Argentina players Javier Mascherano and Pablo Zabaleta also played on in their teams semifinal against the Netherlands in Sao Paulo after hard knocks to the head. Mascherano appeared to be completely disorientated and fell to the ground after a clash of heads with a Dutch player. Both Mascheerano and Zabaleta started in the final.dddddddddddd Questions about FIFAs concussion protocol were initially raised in the group stage of the World Cup when Uruguay defender Alvaro Pereira refused to leave the field after being hit in the head by an England opponents knee. Pereira lay motionless for a short while and appeared to be briefly unconscious, but was still allowed to come back onto the field and continue playing. Uruguay team doctor Alberto Pan initially made hand signals for a substitution but then seemingly changed his mind after the clearly dizzy player furiously protested. The images provoked criticism from professional players union FIFPro, head injury specialists and others. Pereira later said the blow knocked him out and "was like the lights went out." "I was also not happy with that situation. I must confess that," said Michel DHooghe, a member of the FIFA executive board and chairman of its medical committee. The incidents have led to debate over whether FIFA should allow a temporary substitution so a player can get a head injury properly checked. Top-level rugby, for example, allows players who are suspected of having concussion to leave the field and be looked over by a doctor, and temporarily replaced with someone off the bench. FIFA medical chief DHooghe told The AP earlier in the tournament that he doesnt oppose the idea. ' ' '