Dylan Farrells battle to overcome his ongoing back injury is over, with the St George Illawarra centre announcing his retirement from the NRL.The 25-year-old has been struggling to beat the injury for more than a year now, and has not played since round 25 of last season.And on Thursday he made the decision to bring his 89-game NRL career to a close.It is not the way that I would have preferred to bow out, but deep down I know it is the best decision for both my family and myself moving forward in the long run, Farrell said.I have enjoyed every minute playing rugby league and wish I could have returned to the field but unfortunately it was not meant to be.Farrell made his debut for South Sydney in 2010, and scored 32 tries in his six-year career.He was also named in the under-20s team of the year that season.Dylan is a hard-working player who was never afraid to roll-up his sleeves and help get the job done, Dragons coach Paul McGregor said.It is unfortunate that his ongoing battle with injury has gotten the better of him but he is the type of person who will bounce back from this and turn it into a positive for the rest of his life. Ultra Boost Parley Sale . Fellow centre Pavel Datsyuk remains out because of a concussion. Zetterberg has 11 goals and 19 assists for a team-high 30 points, and Datsyuk has a team-high 12 goals and 11 assists. Ultra Boost Mens Sale .J. -- New York Giants wide receiver Victor Cruz will miss the rest of the season after having surgery on his left knee. http://www.ultraboostclearance.com/ultra-boost-parley-sale.html . They had already blown a double-digit lead, fans were hitting the exits, and a long seven-game road trip waited at the end. Womens Ultra Boost Cheap . Aaron Harrison scored a 22 points for Kentucky (6-1), which has won four in a row following a Nov. 12 loss to current No. 1 Michigan State. Julius Randle overcame a scoreless first half and added his sixth double-double in as many games with 14 points and 10 rebounds. Pure Boost Shoes Sale . -- Adam Snyder returned to the San Francisco 49ers this season because the offensive lineman thought it was his best opportunity to win a championship. RIO DE JANEIRO -- Japans shocking win over New Zealand and a tournament-ending injury to Sonny Bill Williams proved on the first day of Olympic mens rugby in 92 years what coaches have long been saying about the sevens format.First time Japan has ever beaten our side, but thats sevens rugby now, New Zealand coach Gordon Tiejens said. The gap has closed considerably. If youre not up for it on the day, youll get beaten by any team.World series champion Fiji, second-seeded South Africa and Britain secured quarterfinal spots and topped their pools, but nothing came easily Tuesday at Deodoro Stadium.Japans 14-12 upset against New Zealand, its first ever in rugby sevens, and its narrow 21-19 loss to Britain turned the formbook in Pool C upside down.If that wasnt enough, the Japanese went within inches of a draw with Britain, missing a chance at a late equalizer when Teruya Goto couldnt convert Lomano Lemekis last-minute try.It was heartbreaking. We wanted that goal, so for the next game wed know were going to quarterfinals, Japans Lote Tuqiri said. Now we need to step up -- its a must-win game for us against Kenya.Still, he reckoned the performances at the Olympics were worth celebrating almost as much as Japans win over South Africa last year in the traditional 15-a-side game, which ranked as the biggest upset ever at the Rugby World Cup.How Japan finished at the World Cup was really a big boost for Japan rugby and really lifted rugby in Japan, he said. Hopefully our win against New Zealand will boost it another level.New Zealand regained some confidence after its bad start with a 28-55 win over Kenya, which opened with a 31-7 loss to Britain.ddddddddddddTietjens said his team would miss Williams, a two-time World Cup champion with the All Blacks and the highest profile player in the tournament.For that to happen in the first game of the tournament is devastating. Hes obviously shattered and disappointed, Tietjens said. But theres a lot of character in this team, I can assure you.Fiji kicked off its bid for a first Olympic medal with a 40-12 win over host Brazil, then needed two late tries for a comeback 21-14 win over Argentina -- ensured by Jerry Tuwais desperate try-saving tackle on Axel Muller in the last seconds.The Fijians lead Pool A and the second-seeded South Africans posted 50 points without conceding any in wins over Spain and France to top Pool B.The top eight teams after three group games enter the quarterfinals. Thats the top two teams in each of the three groups, plus the next two third-place teams, so points differentials will be crucial.The U.S. men conceded a last-minute try in a 17-14 loss to Argentina in their first match and rebounded with a 26-0 win over Brazil, leaving plenty on the line Wednesday when the Americans play Fiji.In Pool B, the battle for second is between France and Australia. The French had a surprising 31-14 win over the Australians in the opening game of the tournament and then lost 26-0 to South Africa. Australia recovered from its opening loss to beat Spain 26-12, but faces South Africa next. ' ' '