Kevin Durant has become the first NBA star to sign with Jay-Zs Roc Nation agency. Durant posted a photo on social media Monday of himself and the rap mogul with the paperwork. Jay-Z became certified as a representative by the NBA players association last week. A quote attributed to Durant above the picture says hes "grateful for this opportunity with Roc Nation Sports. Its go time." The Oklahoma City star and Olympic gold medallist -- who had a field goal percentage over 50, a 3-point percentage over 40 and a free-throw percentage over 90 -- leaves agent Rob Pelinka to sign with Roc Nation. "He has a 90.5 free throw shooting rate, the youngest player in NBA history to join the 50-40-90 club, a giving individual and a legend in the making. What more can I say?" reads the quote attributed to Jay-Z, whose real name is Shawn Carter.Ian Happ Cubs Jersey . 24 Baylor in a Big 12 clash between teams trending in opposite directions. Andrew Wiggins made 10-of-12 from the foul line and scored 17 for Kansas (14-4, 5-0 Big 12), which capped a stretch of four straight games against ranked opponents unscathed. Greg Maddux Jersey .2 billion agreement with Rogers Communications for the leagues broadcast and multimedia rights. http://www.cubsauthentic.com/cubs-mike-montgomery-jersey/ . Carey Price didnt, but he still came out on top against one of his rivals for the No. 1 job at the Sochi Games. The Anahim Lake, B.C., native was stellar in making 39 saves in his home province and Lars Eller got credit for a bizarre short-handed winner as the Canadiens defeated the Canucks 4-1. Ernie Banks Jersey . PAUL, Minn. Jon Lester Jersey . Down by seven with 90 seconds left in regulation, thats where they looked comfortable.LAUSANNE, Switzerland -- Yarelys Barrios of Cuba was stripped of the silver medal in the womens discus from the 2008 Beijing Olympics on Thursday after testing positive in a reanalysis of her doping samples.Barrios tested positive for acetazolamide, a banned diuretic and masking agent, the International Olympic Committee said.The 33-year-old Barrios has been retroactively disqualified and loses the silver medal, which she won with a throw of 63.64 meters. The silver now stands to go to Olena Antonova of the Ukraine, with Chinas Song Aimin in line to move from fourth to bronze. Stephanie Brown Trafton of the United States won the gold with a throw of 64.74 meters.Barrios also competed at the 2012 London Olympics, where she was upgraded from fourth place to the bronze medal after Russias Darya Pishchalnikova was retroactively stripped of the silver for doping.The IOC asked track and fields governing body, the IAAF, to modify the 2008 discus results and consider any further action against Barrios, who was also a two-time silver medalist at the world championships and two-time gold medalist in the Pan American Games.dddddddddddd.Also Thursday, Qatari sprinter Samuel Adelebari Francis was disqualified from the Beijing Games after testing positive for the steroid stanozolol. The Nigerian-born Francis was eliminated in the 100-meter heats and did not start in the 200.Francis was the 100-meter champion at the 2007 Asian Games in Amman, winning in a personal best time of 9.99 seconds.Barrios and Francis are the latest athletes sanctioned after retests of more than 1,000 samples from the Beijing and London Olympics produced 98 positive cases. On Wednesday, six athletes -- including four medalists -- were disqualified for doping in Beijing.The IOC stores samples for 10 years to allow them to be reanalyzed when improved testing methods become available. The latest tests can detect the use of steroids going back weeks and months, rather than days. ' ' '