Adrian Lewis has conceded that playing doubles matches alongside Phil Taylor at the World Cup of Darts can be difficult to adjust to. World Cup guide Draw, schedule, pairs... everything you need to know The unique competition is live on Sky Sports from Thursday until Sunday and Englands Lewis and Taylor will enter as the defending champions - they meet Spain in the first round.Despite an unrivalled three wins from five World Cups, Lewis claims that the doubles format can present problems. Youve got to try and focus - which can be hard, especially when Phils behind you telling you to slow down! Adrian Lewis He told the PDC: Its hard to get into a rhythm, especially when youre playing a doubles match, but youve got to try and focus - which can be hard, especially when Phils behind you telling you to slow down!I really enjoy it. Pairing up with Phil and playing for England is good and weve won it in three out of four years, so weve got a good record and hopefully we can retain the title. Look back at last years tournament as England scooped the top prize We always have fun and a lot of friendly banter with other teams but its brilliant playing with Phil.The World Cup offers darts top names to renew acquaintances wearing the colours of their countries, having spent the past few months battling away in the Premier League. Gary Anderson, who will represent Scotland alongside Robert Thornton against New Zealand in the opening round, still recalls last years painful defeat to England.It would be great to win the World Cup, said Anderson. Adrian and Phil havent let me forget that final for an entire year but the pressure will be on them and hopefully Robert and myself can come through. Rod Studd has selected Devon Petersens miscount as his favourite World Cup of Darts moment We wont be taking anything for granted against New Zealand though because its a big chance for them and theyll want to produce a big upset against us.World No 1 Michael van Gerwen is another obvious favourite to lift the trophy on Sunday - he teams with Raymond van Barneveld for the Netherlands, a duo that won the title two years ago, against Russia. Raymond van Barneveld (left) and Michael van Gerwen win World Cup of Darts 2014 Van Gerwen said: Winning this title two years ago was very special for me and Raymond and it would be fantastic if we can do that again this weekend.Well focus first on the Russia game because we dont know what to expect and anything can happen in doubles matches, so well have to prepare well.The World Cup of Darts begins on Thursday at 7pm, live on Sky Sports 1 HD. 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There are surprises among the Vezina candidates, but most of the others are standard top-tier performers, even if the two Hart Trophy runners-ups have never been quite as good as they have been through the first half of the season. Former Detroit Lions running back Jahvid Best?is set to become the first former NFL player to participate in the Summer Olympic Games after being approved to represent St. Lucia in track and field next month in Rio.Best will run in the 100 meters for St. Lucia, a Caribbean island with an estimated population of just over 163,000. Best was born in Vallejo, California, but his father holds dual citizenship in St. Lucia and the United States.This is a huge accomplishment for me, but at the same time this is just the beginning, Best told NBC Sports. I have only been in this sport for two years professionally, and plan on being around for a long time.According to NBCSports.com, Best will become the first former NFL player to compete in the Summer Games.Marquise Goodwin?competed for the U.S. in the 2012 Olympic long jump, but that was before he started his career as a wide receiver for the Buffalo Bills. Goodwin didnt qualify for the Olympic squad for Rio.Jeff Demps won silver for the U.S. in the 4-by-100 relay at the 2012 Olympics before going on to play for the Tampa Bay Buccaneers and Indianapolis Colts. Demps was eliminated in the first round of the 100 meters at the U.S. Olympic trials.Best waas the Lions first-round draft pick in 2010 out of the University of California, but he played only two seasons in the NFL due to a series of concussions.dddddddddddd After his retirement from the Lions, Best returned to Cal to finish his degree and serve as a graduate assistant for the Golden Bears.According to NBCSports.com, Best was a high school track star and returned to sprint training in 2015 with ALTIS, an athletic training center in Arizona with a strong pedigree of Olympic athletes.The road to Rio began for Best after he posted a 10.16-second time in the 100 meters at a meet in Sacramento, California, on April 2. The time was within the Olympic qualifying standard for the event and allowed Best to be eligible to represent St. Lucia due to his fathers citizenship.I just want to bring pride to St. Lucia, to the Olympic team, to the sport of athletics, Best told the St. Lucia News in a May interview. I want to carry the flag around the track and make my family and country proud.Bests time would have not been good enough to qualify for the U.S. Olympic team. ' ' '