Saracens lock forward Alistair Hargreaves has retired from rugby with immediate effect following a concussion injury. Hargreaves made 79 appearances for Saracens over four years, leading the club to the Premiership title in 2015. Win the Rugby Trip of a Lifetime Enter a free prize draw when you buy tickets for Argentina v Australia at Twickenham The 30-year-old said: Its been a very tough decision to make. Ive suffered a number of concussions in the last two seasons and after seeking medical advice Ive come to the conclusion that the risk is outweighing the reward. I have a young family, I have to make decisions that are right by them and although this was a hard decision for me personally its one that I feel is the right one to make. Hargreaves (No 5) in the thick of the action for Saracens against Ulster I leave as a Saracens man to the core. My time in South Africa was fantastic, it was great to play for the Sharks and be capped by the Springboks but this time at Saracens has been my highlight. Ive grown as a rugby player but more importantly, Ive grown as a human being.Saracens director of rugby Mark McCall added: The welfare of our players is of paramount importance - we are fully supportive of Alistairs decision. Watch NOW TV Watch Sky Sports for just £6.99. No contract. He has played a key role in our recent success with his character, hard-work and leadership coming to the fore over the last four seasons. We wish Alistair, his wife Carmen and their young son the very best for the future.Earlier this year, Saracens appointed centre Brad Barritt as captain he led the side to the Premiership and European Champions Cup titles while Hargreaves was sidelined through injury.Together with former team-mate Chris Wyles, Hargreaves has launched a brewery and the pair are considering opening pubs and creating more beers. You can watch Englands tour of Bangladesh, plus Premier League football and the Japan Grand Prix on Sky Sports. Upgrade now and enjoy three months at half price! Also See: Kruis: Itoje Englands answer Saracens sign Fenby as cover Fixtures and results Rugby Union on Sky Ty Montgomery Jersey . -- Blake Griffin scored 32 points and grabbed eight rebounds, DeAndre Jordan had 14 points and 22 rebounds and the Los Angeles Clippers outlasted the Golden State Warriors 98-96 on Thursday night to take a 2-1 lead in their first-round series. Maurice Canady Jersey .C. -- Panthers offensive tackle Jordan Gross is saying goodbye to the NFL after 11 seasons. http://www.officialbaltimoreravensfootball.com/authentic-kenny-young-jersey-womens . The International Ice Hockey Federation says Pavlovs avoided a two-year sanction because he acted "without significant negligence in failing to verify the safety of the supplements he was taking. Sam Koch Jersey . The Rangers centre left early in Game 1 with an upper body injury after being checked by Canadiens defenceman Mike Weaver and has not played since. Brassard told reporters after practice that he was good to go. That brought a smile to the face of Rangers coach Alain Vigneault. Orlando Brown Jr. Jersey . Forward Iker Muniain scored the winner in the 70th minute after Bilbaos incessant pressure recovered the ball and sparked a counterattack inside Barcelonas half. Neymar was once again tagged to pick up Messis goal-scoring duties, but when he wasnt frustrated by slippery footing Bilbaos defence got the better of him.Fridays action from Brazil concludes with Ecuador and Honduras both looking for their first win at the 2014 World Cup. Listen to Ecuador vs. Honduras LIVE at 6pm et/3pm pt on TSN Radio 1050 Toronto and TEAM 1410 Vancouver. Ecuador and Honduras will both be aiming to bounce back after suffering defeats in their respective World Cup openers in Group E play at the Arena da Baixada on Friday. Both sides enter the match without a point, but the two teams arrived at that destination in very different ways. Ecuadors 2-1 defeat to Switzerland came on a stoppage-time winner from Swiss substitute Haris Seferovic, while Honduras was hammered 3-0 by France and had Wilson Palacios sent off in the first half. There is no room for error for either team in this game as the loser would be eliminated, and both must pick themselves up after tough defeats to open the competition. Ecuador took the lead in the contest in the 22nd minute through a goal from Enner Valencia as he headed home a free kick. But Switzerland made the most of a set-piece chance of its own and equalized early in the second half courtesy of Admir Mehmedi. The match was there for the taking for either side in the second half, but just when Ecuador seemed to be pressing for the winner, Switzerland hit on a counter attack in the dying minutes to snatch the win on a well-worked piece of play that resulted in Seferovic slamming home the winner from close range. "It was an intense and evenly-matched game. Weve seen both teams perform to the best of their ability," said Ecuador head coach Reinaldo Rueda, "We seemed to have thee game under control, but what use is that if you end up losing? But thats football, although we didnt deserve to lose.dddddddddddd Both teams went looking for the win. We have to get this defeat out of our heads and get ready to face two very strong opponents." That first opponent, Honduras, was soundly beaten by France through two goals from Karim Benzema and an own goal that brought goal-line technology into play. Benzema converted from the penalty spot shortly before halftime to put France into the lead, while Honduras entered the break with 10 men after Palacios received a second yellow card. At that point it was mostly about damage control for head coach Luis Fernando Suarez and his team, although he watched France add another goal in the 48th minute when a shot from Benzema struck the post and was deflected into his own net by goalkeeper Noel Valladares. Benzema then capped the match with another tally 18 minutes from time, leaving Suarez to hope that his side can learn from the defeat and move forward. "It was a tough match, and they came through it better than we did," Suarez said. "Weve got no regrets; they were simply better than us on the day. There are certain aspects that well need to improve ahead of our next game. Its difficult to overcome a team thats already up by a goal and is capable of holding on to the ball so well. Well need to retain the lessons we learned today." Honduras is still searching for its first win at a World Cup, while Ecuador can give itself a chance at reaching the round of 16 for the second time with three points on Friday. 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