Andy Murray will be required to conjure up more of his remarkable powers of recovery if he is to make it through to the knock-out stages of the ATP World Tour Finals on Friday. Mike Piazza Jersey . Having beaten Marin Cilic and Kei Nishikori, the world No 1 only needs to win a set against Stan Wawrinka to guarantee his passage through to the semi-finals at the O2 Arena for the first time since 2012. Six months half price Upgrade to Sky Sports to watch Man Utd v Arsenal on Saturday and get the first six months half price But he will have to drag his weary body through another tough test as an explosive season finale draws ever closer. World No 3 Wawrinka showed much better form in beating Cilic on Wednesday than he had in his limp loss to Nishikori and the Swiss knows that a straight-sets win over Murray would maintain his record of always reaching the last four. Sky Live: Murray v Wawrinka Andy Murray takes on Stan Wawrinka at ATP World Tour Finals Nothing comes easy against the very best players in the world, let alone against the US Open champion who has suddenly clicked in London - something Sky Sports analyst Mark Petchey acknowledges.Wawrinka is always the wildcard in the pack, hes the guy that when hes confident, hes got the power to get through tough surfaces and he does a lot of things well, said Petchey. He moves better than people give him credit for and as I say it was an intelligent performance with the use of the slice. Its not just about the power and the showbiz tennis. Wawrinka beat Murray at the Tour Finals in London last year Friday will be the 17th meeting between the pair, with Murray leading the head-to-head record 9-7, and when they do clash, sparks usually fly.Wawrinka, who sealed his first major title at the 2014 Australian Open before winning an ATP Tour1000 event, last faced the Scot in the French Open semi-finals.That was one of Murrays most impressive performances of the season and ended a run of three straight losses to Wawrinka, including at the O2 last year with qualification at stake. Murray also suffered a 6-1 6-2 defeat to Wawrinka at the Monte Carlo Masters in 2013 Wawrinka, who faces a battle to hold on to the world No 3 ranking, said: All I know is, if I want to have a chance to qualify, I need to win. Thats all Im trying to do.Im going to try to play my best tennis, to beat the world No 1. Its going to be a tough match. We played each other many times.The hardcourt surface at the O2 Arena will suit Wawrinkas heavy hitting style of game from both flanks, but hell have a job breaking down a resilient Murray. The 29-year-old is a totally different prospect to the one he faced in the US Open quarter-finals and Monte Carlo Masters in 2013. Mark Petchey and Greg Rusedski discuss Murray’s epic win over Nishikori and his chances against Wawrinka Arguably the most famous meeting between the two came under the Wimbledon lights in 2009 in a contest lasting three minutes short of four hours, which the Scot won in dramatic fashion. Could it more of the same on Friday?Obviously its going to be a tough match, said Petchey. Theyve had a lot of tough matches in the past and this will be another one.Andy is the form player right now and Im sure inside hes feeling pretty invincible every match he steps out on court. WATCH: Murrays double take Andy Murrays remarkable winner against Kei Nishikori was reminiscent of his winner in Rome Weve got a couple of guys out here who are Grand Slam champions who both believe they can win every single match they step out on court with, no matter who theyre playing, where theyre playing in the world, on what surface theyre playing in the world.So both of those players are going to go into that clash on Friday believing and knowing at the moment they still need to win it. Murrays service syndrome over? Andy Murrays service syndrome may be a thing of the past Should Murray win his group, he would play the winner of Thursday evenings clash between Milos Raonic and Dominic Thiem in the semi-finals. Let battle commence...Check our game-by-game coverage from all group matches at the ATP World Tour Finals in London - including Andy Murray v Stan Wawrinka on Friday afternoon - on skysports.com/tennis, our app for mobile devices and iPad and our Twitter account @skysportstennis.Upgrade to Sky Sports now to watch Man Utd v Arsenal this Saturday and get the first six months half price! Also See: Murray beats Nishikori in epic WATCH: Murrays double take One of the best matches ever Wawrinka keeps hopes alive Cody Bellinger Jersey . One out away from finishing off an impressive shutout, they let a must-win game slip away. Kenta Maeda Jersey . -- D.A. Points was disqualified Friday from the AT&T Pebble Beach National Pro-Am for using a training device while waiting to play the 18th hole at Pebble Beach. http://www.cheapdodgersjerseys.com/?tag=cheap-sandy-koufax-jersey . The 41-year-old Northern Irishman has proved a perfect fit at Liverpool since taking over from Kenny Dalglish in the summer of 2012 and steered the team to an unexpected title challenge in the Premier League last season.Boston Bruins forward Patrice Bergeron, San Jose Sharks forward Brent Burns and Chicago Blackhawks defenceman Duncan Keith have been named finalists for the 2013-14 NHL Foundation Player Award, presented to "an NHL player who applies the core values of hockey – commitment, perseverance and teamwork – to enrich the lives of people in his community." The 30 NHL clubs each submitted a nomination for their team and the finalists were selected by a judging panel. Bergerons community intitatives include “Patrices Pals,” a program that provides children from various youth organizations the opportunity to watch Bruins home games from a luxury suite. Among the charities that have participated are Boston Childrens Hospital, Defending the Blue Line, Floating Hospital for Children at Tufts Medical Center, Franciscan Hospital for Children, The Jimmy Fund, The Home for Little Wanderers and Massachusetts General Hospital. Burns has donated more than $1 million to Defending the Blue Line, which provides children of military families the opportunity to play hockey. Cheap MLB Jerseys. He hosts guests in the “Burnzies Battalion” suite at SAP Center each season and his hockey equipment drives at Sharks Ice at San Jose are the organizations most lucrative fundraisers each year. Burns also shaved his infamous long hair and beard to raise $24,000 for DTBL and the Katie Moore Foundation this season, established by close friend and former teammate Dominic Moore to help those suffering from rare cancers. Keiths impact in the Chicago community is felt through his charity, Keith Relief. Keith and his wife assist others by alleviating some of the financial and emotional burdens of families and individuals during times of medical crises. Keith Relief has raised more than $250,000 through benefit concerts since 2012, with all proceeds benefiting the organization as well as Ronald McDonald House Charities of Chicagoland and Northwest Indiana. ' ' '