Andy Murray will concentrate solely on the singles for Great Britain during this weekend 's Davis Cup tie against the USA , after it was confirmed that he will not feature in the doubles . The Lawn Tennis Association have revealed that the British No 1 's brother Jamie and Dom Inglot would represent Britain on Saturday afternoon against the Bryan twins . Murray had earlier revealed he was unlikely to feature on the middle day in order to conserve energy for his clash with John Isner on Sunday . Andy Murray will not play in Great Britain 's Davis Cup doubles tie against USA on Saturday afternoon . Murray 's brother Jamie ( right ) will play in the doubles with Dominic Inglot against the Bryan twins . Great Britain could wrap up their Davis Cup first round tie with victory in the doubles on Saturday . If Jamie Murray and Inglot can beat Bob and Mike Bryan then Leon Smith 's side will have an unassailable 3-0 lead . This feat could be achieved following a fantastic set of results on Friday , where both Andy Murray and James Ward secured successes over Donald Young and Isner in their singles ties . James Ward secured a thriller five-set win over John Isner to give Great Britain a 2-0 lead in the tie overall .
Great Britain face clay in the doubles on Saturday afternoon . Andy Murray defeated Donald Young in four sets on Friday to give GB three - set lead . James Ward defeated John Inser in a five - set tie afterwards .