Ruthless Murray ready to bury best friend Wawrinka

LAST week they were allies, pinging balls back and forth in an atmosphere of camaraderie. But today Andy Murray and Switzerland&rsquo;s Stanislas Wawrinka, one of the British No1&rsquo;s best friends on the tour, will be bitter adversaries.<br /><br />Murray resumes his Wimbledon quest on Centre Court with a fourth-round contest against 19th seed and regular practice buddy Wawrinka. But the Scot insists there is no danger their friendship off the court will diminish his killer instinct on it.<br /><br />&ldquo;It doesn&rsquo;t change anything for me. When you go to the court you&rsquo;re there to compete, regardless of whether you&rsquo;re friends or not,&rdquo; said Murray. &ldquo;You kind of know each other&rsquo;s games a little bit better than you might know some of the others that you don&rsquo;t hit with and don&rsquo;t see around that much. But it won&rsquo;t make a difference.&rdquo;<br /><br />If Wawrinka goes the way of Robert Kendrick, Ernests Gulbis and Victor Troicki &ndash; that is, back to the dressing room following a ruthlessly administered thrashing &ndash; Murray is likely to meet eighth seed Gilles Simon, of France, in the quarter-finals. The world No3 will also be one step closer to achieving his ultimate aim: ending Britain&rsquo;s 73-year wait for a men&rsquo;s singles champion at the All England Club. <br /><br />But while he admits to dreaming of emulating Fred Perry, Murray&rsquo;s immediate focus is squarely on defeating the 24-year-old, who won Olympic gold in the doubles alongside top seed Roger Federer last year.<br /><br />&ldquo;I&rsquo;d obviously love to get to the final. But there is still a lot of tennis to be played,&rdquo; Murray added. <br /><br />&ldquo;You think about it the final three or four months before the tournament starts. But it&rsquo;s not what I&rsquo;m thinking about. I&rsquo;ll be concentrating on Stan and trying to get through the next match.&rdquo;<br /><br /><strong>ORDER OF PLAY DAY SEVEN<br /></strong>CENTRE COURT (1PM START)<br />R Soderling 13 v R Federer 2<br />D Safina 1 v A Mauresmo 17<br />A Murray 3 v S Wawrinka 19<br />COURT ONE (1PM START)<br />V Williams 3 v A Ivanovic 13<br />F Verdasco 7 v I Karlovic 22<br />T Berdych 20 v A Roddick 6