Andy Murray must keep improving next season if he wants to stay at No. 1, according to Britains Davis Cup captain Leon Smith.Murray ended Novak Djokovics 122-week reign at the top of the rankings earlier this month, and fended off the Serb from the year-end No. 1 spot by beating him in the World Tour final in London.You can imagine what his pre-season will be like, Smith told The Herald of his fellow Scot. He will absolutely work his socks off and try to get better again.Now he is No.1 he has got to work out how to stay there and improve again. It never ends, never stops.Murray will get his 2017 season underway 630 points ahead of Djokovic at the Qatar Open on Jan. 2, and could be set for a lengthy stay at No. 1.In the first six months of the year, Djokovic must defend titles from Doha, the Australian Open, Indian Wells, Miami, Madrid and Roland Garros after a dominant start to 2016 -- indeed, he held a lead of more than 8,000 points over Murray after beating him in the French Open final on June 5.However, it was just five months later to the day that Murray -- who first reached the No. 2 ranking in August 2009 -- ensured he would overtake the Serb by making the Paris Masters semifinals, in the midst of a career-best 24-match win streak that took in five consecutive titles.That run capped off a remarkable season that also saw the Scot win a third major at Wimbledon, retain his Olympic gold in Rio and claim nine titles overall. His older brother Jamie Murray also had the best season of his career, winning two Grand Slams and finishing as the year-end doubles No. 1 with Brazilian partner Bruno Soares.What I find amazing is how much you have to put in to move from No. 2 to No. 1, added Smith. You can go on an unbelievable run and go from No. 100 or whatever but to go from two to one, it was 21 matches in a row at that level of the sport, just to move one place.The bit that takes you from two to one is being prepared to ask, What do I need to do to make sure I get better? I am hugely impressed about how he [Murray] keeps developing his game and Jamie is the same when you watch him operate on court and off the court. He has really committed to everything he has to do to make himself the best. Orioles Jerseys 2019 . MLS Commissioner Don Garber and Miami-Dade County Mayor Carlos Gimenez also will attend the session, which was announced Monday. 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The home side created most of the chances but struggled to break down Braunschweigs resilient defence, resulting in the Bundesligas 1,000th scoreless draw. AFL legend Kevin Bartlett has taken aim at the leagues illicit substances policy after former Collingwood star Dane Swan confirmed he took drugs during his career.Swan has revealed that, like fellow Brownlow medallist Ben Cousins, he never failed a drug test during his 14 seasons with Collingwood.Bartlett, a five-time VFL premiership player with Richmond, says the admission shows the AFL is wasting its time enforcing drug tests.All this money were spending, weve got two Brownlow medallists now who have come out and we know have taken illicit drugs and not one of them has a strike next to his name, he told SEN radio on Monday.Why not save all of those millions of dollars and put it into some other avenue of football? Let the AFL clubs look after their own players. They can rub them out or put them through some sort of program.Under the AFLs illicit drugs policy, players receive a $5000 suspended fine for recording their first strike but are granted anonymity on the condition they receive counselling.dddddddddddd.The league announced last year that players who record a second strike will be named and suspended for four matches, with a third strike resulting in a 12-match ban.Swan, who won the Brownlow medal in 2011, has not revealed which drugs he took during his career or when he took them but denied going out of his way to avoid being tested.I never once stated how much I did, when I did it or where I did it, he told AFL trade radio.Until people know all the facts, they can only speculate.Swan retired after suffering a foot injury in the opening minutes of the 2016 season, bringing an end to his 258-game career which included winning a premiership in 2010. ' ' '