MOSCOW -- Two Russian weightlifters have been banned for doping in a further hit to the credibility of both Russian sport and weightlifting ahead of the Rio de Janeiro Olympics.Former European under-23 champion Alexei Selyutin was banned for four years and Russian national champion Yekaterina Vlasova for 18 months, the Russian anti-doping agency says, citing the Russian weightlifting federation.The agency did not provide details of the offenses.While Selyutin and Vlasova were unlikely to make the Russian team for Rio, their bans are a further blow for Russian weightlifting, which already risks being barred from the Olympics altogether for numerous earlier doping cases.Weightlifting is also in the grip of a doping crisis after many medalists from the 2008 and 2012 Olympics failed retests of their samples. Ray Ban Sunglasses From China . With his new coach and six-time Grand Slam singles champion Boris Becker watching him during an official match for the first time, Djokovic appeared tentative early against the Slovakian player, who often appeared content to keep the ball in play. Clearance Ray Ban Sunglasses Cyber Monday .35 million, one-year contract that avoided salary arbitration. Plouffe batted .254 with 14 home runs and 52 RBIs in 477 at-bats last season, his second as a regular in the lineup. http://www.raybanclearance.com/ . -- Anaheim Ducks defenceman Luca Sbisa will be out at least six weeks with a torn tendon in his right hand. Clearance Ray Ban Aviator Sunglasses . What general manager Dave Nonis called "short and productive" negotiations ended with Kessel signing a US$64-million, eight-year contract on Tuesday. Discount Ray Ban Sunglasses . PETERSBURG, Fla.Michael van Gerwen and Phil Taylor will continue their battle for top spot in the Premier League on night 14 in Manchester. The Dutchman moved above Taylor on leg difference after last weeks matches in Birmingham and the top two return to action on Thursday night, live on Sky Sports 1 HD from 7pm.All four play-off spots are yet to be decided and precious points are up for grabs as players attempt to secure a place at the season-ending night at The O2. James Wade v Peter Wright Peter Wright is still in the hunt for a top-four spot This is a win-or-bust encounter for both players, who desperately need a victory to keep alive their hopes of snatching a spot in the top four.Wade and Wright are both three points adrift of fourth-placed Lewis, but had differing fortunes in their matches last week. Peter Wright goes undefeated on week 13 of the Premier League Darts after a win over Phil Taylor and a draw against Gary Anderson An inspired Van Gerwen inflicted a 7-1 thumping on the shellshocked Wade, while Wright defeated Phil Taylor in his opening match before pinching the final leg to claim a draw in his closing match with Gary Anderson.Gary Anderson v Robert Thornton Gary Anderson will be expected to defeat fellow Scotsman Robert Thornton Anderson has all but assured his play-off place as only an unlikely sequence of results would see the reigning champion fail to qualify.But The Flying Scotsman will want to end the campaign on a high and starts as a hot favourite against his struggling countryman. Gary Anderson has a close Premier League Darts victory over Raymond van Barneveld Thornton suffered a 7-2 thrashing against Lewis last week, his 10th defeat of the competition, and has been hampered by a foot problem and a lack of form since the start.ddddddddddddMichael van Gerwen v Raymond van Barneveld Raymond van Barneveld defeated his Dutch rival at this years World Darts Championship Van Gerwen was at his ruthless best against Wade, hitting seven out of nine darts at a double, as he reinforced his status as the sports top player.In stark contrast, Van Barneveld looked crestfallen after a 7-5 loss to Anderson, which extinguished any faint hopes of a play-off place. Michael van Gerwen hits a bullseye check out to go 4-0 up against James Wade But Barney still relishes any showdown with his Dutch rival and the pair produced an entertaining draw on night nine.Adrian Lewis v Phil Taylor A win would keep Phil Taylor in touch with leader Van Gerwen Taylors surprise 7-4 defeat to Wright was a rare slip-up in a consistent season for the six-time winner and victory over Lewis would set-up an exciting duel with Van Gerwen.The Power will travel to Rotterdam next week for his meeting with Van Gerwen, the last match of the regular campaign, and would relish the chance to finish in first place.Lewis is still looking over his shoulder in fourth place, despite a three point cushion, and a win would guarantee his attendance at The O2.Watch all of this weeks Premier League matches on Thursday night from 7pm on Sky Sports 1. Or watch for £6.99 without a contract, on NOW TV. Also See: PL Darts talking points Mighty MVG overtakes Taylor Prem Table WATCH: Barneys brilliant 132 ' ' '