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BOSTON -- Two players violated league concussion protocol during last weekends wild-card games, according to a letter sent by the NFLs head, neck and spine committee chairmen to all team doctors and trainers. Patrick Chung Patriots Jersey . In a document obtained by The Associated Press, Drs. Hunt Batjer and Richard Ellenbogen said one player re-entered the game and another refused to leave the sideline. The doctors did not identify the players, but one was Green Bay tackle David Bakhtiari, who went into the game for an extra-point try despite being examined for a concussion and not cleared. The other player was Saints cornerback Keenan Lewis, who remained on the sideline but did not get back on the field. "On two occasions last weekend, and contrary to the advice of the team medical staffs, players who had been diagnosed with a concussion and therefore declared ineligible for play nonetheless refused to leave the sidelines as required by league concussion protocols," the letter said. "In one case, the player went back onto the field for one play before being removed from the game." The doctors found "no fault" in how the team medical staffs conducted themselves. "If a player refuses to follow your advice and leave the sidelines after being diagnosed with a concussion, we recommend that the head athletic trainer seek assistance from the players position coach (or another member of the coaching staff) or from another team official to remove the player from the sidelines as soon as possible," the letter said. The NFLs Madden Rule requires a player diagnosed with a concussion to be taken to the locker room or another quiet location. "We will continue working with the league to ensure that team doctors, coaches, trainers and other members of a teams medical staff enforce return-to-participation protocols," the NFL Players Association said in an email. "Players naturally want to play and ultimately, the game-day medical and coaching staffs have the responsibility and obligation for player protection and care." The Saints and Packers declined comment. No fines will be imposed for the violations. Bakhtiaris season is over because Green Bay lost to San Francisco. But Lewis Saints are playing Saturday at Seattle and he has been practicing. Batjer and Ellenbogen noted in the letter how players may resist being kept out of the game, particularly during the post-season. "But (the rule) is an important element of the leagues protocol and intended to safeguard the players well-being and enhance his ability to recover from his injury," they wrote. Darrelle Revis Patriots Jersey . -- A year ago, Flavia Pennetta was close to retiring from tennis. Jamie Collins Patriots Jersey ., native Andrew Wiggins wasnt around a year ago for one of the worst nights in Kansas basketball history.LONDON -- Tottenham hired Mauricio Pochettino as the clubs new manager on a five-year contract on Tuesday, with the former Argentina defender making the move from fellow Premier League side Southampton. Pochettino replaced Tim Sherwood, who was fired on May 13 after just five months in the job following Tottenhams sixth-place finish in the league. The 42-year-old Pochettino developed a strong reputation for playing a positive, attacking brand of football in his 18 months at Southampton, which he joined from Spanish side Espanyol when he replaced Nigel Adkins. Southampton finished eighth in the standings last season, with its highest Premier League points haul of 56. "This is a club with tremendous history and prestige and I am honoured to have been given this opportunity to be its head coach," Pochettino said. "There is an abundance of top-class talent at the club and I am looking forward to starting work with the squad. We are determined to give the supporters the kind of attacking football and success that we are all looking to achieve." Pochettino is the eighth permanent manager to be appointed in Spurs chairman Daniel Levys 13 years at the club. "In Mauricio I believe we have a head coach who, with his high energy, attacking football, will embrace the style of play we associate with our club," Levy said in a statement. "He has a proven ability to develop each player as an individual, whilst building great team spirit and a winning mentality. We have a talented squad that Mauricio is excited to be coaching nexxt season. Julian Edelman Jersey. " Tottenham aspires to qualify for the Champions League again, having played one season alongside Europes elite in 2010-11. Following the sale of winger Gareth Bale to Real Madrid for 100 million euros (then $132 million), the North-London club went through a chaotic season that has featured defeats of 6-0 and 5-1 to Manchester City, 5-0 at home to Liverpool and a change of manager when Andre Villas-Boas was replaced by Sherwood. Pochettinos arrival could also help relaunch the career of forward Erik Lamela, who has struggled to adapt to the Premier League and was hampered by a series of injuries since joining the club for an estimated 30 million pounds ($50.41 million) fee. Although he was beaten twice by Sherwood last season, the former Espanyol boss led Southampton to its highest-ever Premier League finish. He will keep working with his own staff, with assistant coach Jesus Perez, first team coach Miguel DAgostino and goalkeeper coach Toni Jimenez all following him to White Hart Lane. Southampton said it has begun its search for a "high-calibre" manager, with Sherwood reportedly an option to replace Pochettino alongside the likes of Malky Mackay, Steve McClaren, Murat Yakin and Michael Laudrup. "The club has been on a constant path of growth since the arrival of (the late owner) Markus Liebherr in 2009," Saints chairman Ralph Krueger said. "This growth took place before Mauricio came, it continued strongly under his leadership, and it will continue into the next season." ' ' '