LONDON --?Andy Murray?has never lost before the final at Wimbledon with Ivan Lendl in his corner, but that record is about to come under baseline bombardment from an opponent who tried and failed to recruit the coach.And if there is any tension in the Centre Court air on Friday as a result, it wouldnt be the first time that a coach had caused a Grand Slam semifinal between Murray and?Tomas Berdych?to be played out in a?fraught and fractious atmosphere.After Murrays former coach Dani Vallverdu joined Berdychs entourage?before the Australian Open last year, there was so much edginess around their match that Murrays future wife Kim Sears appeared to swear in the Czech players direction.She would come dressed for the final in a T-shirt that declared: Parental advisory: explicit content.You only have to look at Murrays Wimbledon results -- with and without Lendl -- to appreciate how important the eight-time Grand Slam champion is to his cause.Lendl probably wont clap during the semifinal, and he certainly wont smile. He might not even move from his seat. But he could prove to be the difference.Murray hasnt reached the final of The Championships under anybody elses guidance. With the Czech-born American Lendl he did so in 2012, when it took Roger Federer to stop him from winning the pineapple-topped trophy.The following summer, with Lendl still very much on the scene, he defeated Novak Djokovic to become the first Briton in 77 years to win a singles title at the All England Club.They split in 2014, and it was when Murray and Lendl were on a break that Berdych asked Lendl to become his coach.I approached Ivan when he stopped working with Andy the first time, Berdych said. He basically said that he didnt have the time and that he didnt want to be involved in tennis. Then he comes back to Andy. So thats how it is.The world No.9 said that he absolutely didnt feel any frustration at being rejected by Lendl and suggested what happened in Melbourne last season hadnt put him on bad terms with Murray: Thats happened. Thats the past. Otherwise, absolutely fine.Just two months ago, Berdych had the excruciating experience of being double-bageled by Belgiums David Goffin at a clay-court tournament in Rome. Soon afterwards, he ditched Vallverdu.He recovered to produce a decent run at Roland Garros, where he lost to Djokovic in the quarterfinals, and hes back in the Wimbledon semifinal for the first time in six years.Tomas hits a big ball and likes to dictate so I need to make sure I keep him on the back foot as much as possible, Murray wrote in his BBC column on Thursday.Murray has won eight of their previous 14 matches, including the last four, but none were on grass. Ill need to look at a couple of his matches over the last week and make a plan, the Scot said.While Murray will never again feel the same expectation that he experienced before winning the historic title here, competing on the grass is hardly a stress-free experience.Three years have now passed since Murray last won a Grand Slam, and he badly wants another one.In the absence of Djokovic, who lost in the third round to Americas Sam Querrey, many believe that this is Murrays title to lose. But thats to ignore the talent -- and the sheer weight of shot -- from Berdych.Even without a sense of grievance, the underdog will be swinging big. Dillon Peters Jersey . Thats not a comment on the suspension that banished the Portland Winterhawks general manager and coach from his Western Hockey League teams bench for most of the 2012-13 season. 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"It is still taking a little time to sink in what Ive achieved this week as was the case when I won the FedEx Cup but then it just kept getting better and better as the days went on and I am sure this will be the same," he said.Britains No 1 speed skater Elise Christie broke the 500m world record at the second World Cup event of the season in Salt Lake City. The Sky Academy Sports Scholar had revealed in the build-up to a new season that she had been learning to lose and training with her male team-mates in a bid to sharpen her focus and give her an extra edge for the new campaign. Watch NOW TV All the thrills of Sky Sports for just £6.99. No contract! That preparation paid off in Utah as the 26-year-old posted a time of 42.335 seconds in her quarter-final, beating the previous mark of 42.504 set by Fan Kexin of China. But that was to be as good as it got for Christie as she fell in the closing stages of the final which was won by Marianne St Gelais of Canada in a time of 43.059 witth Choi Minjeong in second and Kexin in third.dddddddddddd Christie had prevailed in the 500m final in Calgary earlier this month The Scot had taken 500m gold in the opening event of World Cup series in Calgary earlier this month.The Livingston-born skater won a silver medal and three bronzes at this years World Championships in March.Next up for Christie are World Cup events in Shanghai and Gangneung in South Korea before Christmas.The short track speed skating World Championships will be held in Rotterdam in March. Also See: Christie takes charge in Calgary Christie prepares for new campaign Christie ready for Korea Sky Sports scholars latest ' ' '