CARMEL, Ind. -- Jason Day withdrew from the BMW Championship after eight holes on Sunday with back pain, making him ineligible for the Vardon Trophy.Day has a history of back issues, most recently at the Dell Match Play in the spring. The worlds No. 1 player barely made it through the opening round when his back locked up on him and he considered pulling out. The back got better, and Day went on to win.He was 2-over par for his final round at Crooked Stick and in the middle of the pack when his agent, Bud Martin, said he felt pain stooping to pick up his tee.The injury was not considered serious, and Day was hopeful of being in Atlanta in two weeks for the Tour Championship and a shot at the $10 million FedEx Cup bonus.The Australian was leading the Vardon Trophy for the lowest adjusted scoring average going into the BMW Championship. He was ahead by a slight margin over Dustin Johnson, and Johnson was sure to pass him easily going into the final event.However, players who withdraw in the middle of a round are not eligible for the award from the PGA of America, which dates to 1937.Day went straight for treatment.I dont think its anything he hasnt dealt with before, Martin said. He just bent over and it kind of went on him on the ninth hole. Instead of forcing it, we just decided that it was more prudent to come in, get it worked on and deal with it.Martin said Day might choose to have more tests next week just to be sure, but my gut is that hell be fine.The PGA Tour is off next week. The Tour Championship for the top 30 players starts Sept. 22 at East Lake.Hopefully, hell be ready for Atlanta, Martin said. But the most important thing is the next 15 years, not the next 15 days. Discount NBA Jerseys . 10 Texas A&Ms offence dominated as usual against SMU. Nike NBA Jerseys China . In taking its goal tally to 99 in all competitions already this season, City delivered another demonstration of its lethal firepower at Etihad Stadium to set up a fourth-round match at home to another second-tier team -- Watford. https://www.nbachinajerseys.us/ . -- There were so many positives from the Orlando Magics first victory of the season that it was hard for coach Jacque Vaughn to stop praising his players. Cheap Nike Basketball Jerseys . The scientists believe the small earthquake during a Marshawn Lynch touchdown was likely greater than Lynchs famous "beast quake" touchdown run three years ago, which also came against New Orleans during a playoff game. NBA Jerseys China . PAUL, Minn.Two-time MotoGP world champion Marc Marquez has signed a two-year contract extension with Honda. The Spaniards new deal keeps him with Honda until the end of 2018 and it was announced ahead of Marquezs home race in Catalunya on Sunday.The 23-year-old, who is the youngest ever world champion, has been with the Japanese manufacturer since 2013. Im very happy to announce this renewal with HRC, especially coinciding with Grand Prix of Catalunya, my home GP, where I have some really good memories, Marquez said. Marquez has won two MotoGP titles during his time at Honda HRC and I have a very strong relationship, and Ive always wanted to continue being a part of the Repsol Honda Team.In three-and-a-half-years together, weve enjoyed some unbelievable moments, with great victories and two world titles, as well as a few challenging moments that I believe are making us stronger.Were woorking very hard this year to regain the title.dddddddddddd Its a great honour to be a part of the Honda family, and Im glad to remain with this special group of people for another two seasons. Fellow Spaniard Dani Pedrosa has also signed a new contract extension Honda Racings executive vice-president Shuhei Nakamoto also welcomed Marquezs contract extension.Theres no doubt that he is the present and future of MotoGP, he said. We know him well and he knows us well, and we both wanted to continue together.Marquez will continue alongside his current team-mate and compatriot, Dani Pedrosa, who also signed a contract extension until 2018 earlier this year. Also See: Features Wolves extend home run Rookie Rossi wins Indy 500 Aces end Pirates run ' ' '