SAN DIEGO - Chargers safety Jahleel Addae didnt show symptoms of a concussion until Friday afternoon, a day after having two scary reactions following hits in a loss at Denver, a person with knowledge of the situation said.The person spoke to The Associated Press on Saturday on condition of anonymity because of the sensitivity of the injury.Addaes injury gained significant attention after he convulsed while remaining on his feet after a helmet-to-helmet hit late in the third quarter Thursday night. On the games first play from scrimmage, Addae made a hit and immediately went limp on the ground.Addaes reaction to the second hit caused a stir on Twitter. Many people wondered why he was allowed to remain the game and some compared it to when Chargers four-time Pro Bowl left guard Kris Dielman was staggered after sustaining a career-ending concussion in the sixth game of the 2011 season, at the New York Jets.Dielman wasnt diagnosed with a concussion until after that game. He suffered a grand mal seizure on the flight home. The team plane was met by an ambulance and Dielman was hospitalized overnight.Ten days after Dielman was hurt, the leagues injury and safety panel told game officials to watch closely for concussion symptoms in players. Officials were told that if they believed a player had sustained a concussion, they were to take appropriate steps to alert the team and get medical attention for the player.Dielman didnt return that season. The following March, he chose to retire rather than risk further damage.George Atallah, the assistant executive director of external affairs for the NFLPA, said Saturday that the players union is looking into the Chargers handling of Addae as we do with all player health and safety matters.The person with knowledge of the situation said Addae was checked on the sideline after both hits and was cleared each time, and that he was checked after the game, with no symptoms of a concussion.The person declined to say what symptoms Addae showed Friday afternoon.Addae said after the game that he passed the NFLs concussion test. The team said then and again Friday afternoon that Addae had a stinger.At a news conference Friday afternoon, coach Mike McCoy said the team followed proper medical procedure with Addae.Asked to confirm there was no head trauma, McCoy responded by saying he had to meet with trainer James Collins. Ive said all Im going to say about the whole football team with where we are right now, said McCoy, who loathes discussing injuries.Addae was not in the locker room when it was opened to the media about an hour later. A team spokesman later said the safety went to get additional tests. A few hours after that, the team said Addae had been diagnosed with a concussion.___Online: http://pro32.ap.org/poll and http://twitter.com/AP_NFL___Follow Bernie Wilson on Twitter at http://twitter.com/berniewilsonDiscount Air Jordan . Eller said the Oilers were a "junior team" that was "all over the place" before Edmontons 4-3 victory over Montreal on Tuesday night, Oilers head coach Dallas Eakins took offence to Ellers comments and used it to motivate his youthful team. Cheap Air Jordan Uk . Heavily-criticized after allowing a dozen goals on 58 shots in two games in Boston, Luongo continued his dominance at home. 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Jordan Shoes Uk Online . -- Chris Jones and Louisville have done a tremendous job protecting the basketball this season and thats led to easy victories.ROME -- Roger Federers focus appeared to drift away from the Foro Italico. And that was understandable. After all, the 17-time Grand Slam winner was playing for the first time since the birth of his second set of twins last week. Federer let a lead to slip away and was beaten 1-6, 6-3, 7-6 (6) Wednesday in the second round of the Italian Open by 47th-ranked Jeremy Chardy of France. When Federers boys, Leo and Lenny, were born, the fourth-ranked Swiss player withdrew from last weeks Madrid Open. He only decided to come to Rome a few days ago. "This one is totally OK if it doesnt hurt," Federer said. "I tried everything. I cant do more than that on the court." Federer had a match point in the tiebreaker but Chardy saved it with an improbable cross-court forehand on the run when it looked like Federer was about to close the match out. "That passing shot is a tough one for me to take, because hes not going to make that very often," Federer said. "But it happens and credit to him to fight his way back into the match and get it." Later, top-ranked Rafael Nadal also faced stiff resistance from his French opponent before ultimately wearing down 30th-ranked Gilles Simon for a 7-6 (1), 6-7 (4), 6-2 win that lasted 3 hours, 18 minutes -- opening his bid for an eighth Rome title. Nadal hit 32 winners but just three with his backhand, which has become a point of concern recently. Also, Wimbledon champion Andy Murray eliminated Marcel Granollers of Spain 6-2, 7-5. Womens title-holder Serena Williams showed no problems -- and no taping -- from a left thigh injury that forced her to withdraw from Madrid. The top-ranked American beat 28th-ranked Andrea Petkovic 6-2, 6-2. "Im not 100 per cent but Im getting there," Williams said, adding that the conditions at the U.S. Open prepared her for the heavy wind gusts at the Foro Italico. "If I can play in New York, I can play anywhere." Maria Sharapova, the 2011 and 2012 Rome champion, had to rally in the second set to get by Puerto Rican qualifier Monica Puig 6-3, 7-5. After cruising through the first set, Federer began to commit unforced errors at an alaarming rate and Chardy quickly took advantage.dddddddddddd "I wasnt able to stretch the lead when I had it," Federer said. Federer committed 43 unforced errors -- 20 in the second set alone -- to Chardys 28. Federer also struggled to dictate play with his first serve. "But at the end, it was shot here or there that decided the match," Federer said. Chardy hadnt beaten a top-10 player since defeating Juan Martin del Potro in the third round of last years Australian Open. Federer and wife Mirka also have twin girls, Myla Rose and Charlene Riva, who turn 5 in July. But even with all the family distractions, Federer didnt appear worried about his preparations for the French Open, which starts in 11 days. "Everything is under control," Federer said, recalling that he reached the final of the Monte Carlos Masters last month. "I still feel good, my body is good, my mind is good and its just unfortunate for one passing shot today I dont get another opportunity to play this week." Also advancing was 11th-seeded Jo-Wilfried Tsonga, who edged Kevin Anderson of South Africa 7-6 (14), 7-6 (5); and 12th-seeded Grigor Dimitrov, who eliminated Ivo Karlovic of Croatia 7-6 (3), 6-4; and 15th-seeded Tommy Haas, who defeated Igor Sijsling of the Netherlands, 7-6 (6), 6-1. 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