Italy's Andreas Seppi returns the ball to Britain's Andy Murray during their Davis Cup World Group quarterfinal match in Naples, Italy, Friday, April 4, 2014. (AP Photo/Salvatore Laporta)
Britain's Andy Murray returns the ball to Italy's Andreas Seppi during their Davis Cup World Group quarterfinal match in Naples, Italy, Friday, April 4, 2014. (AP Photo/Salvatore Laporta)
Italy's Andreas Seppi returns the ball to Britain's Andy Murray during their Davis Cup World Group quarterfinal match in Naples, Italy, Friday, April 4, 2014. (AP Photo/Salvatore Laporta)
Britain's Andy Murray returns the ball to Italy's Andreas Seppi during their Davis Cup World Group quarterfinal match in Naples, Italy, Friday, April 4, 2014. (AP Photo/Salvatore Laporta)
Sara Errani, of Italy, shows the exhaustion of playing three sets against Belinda Bencic, of Switzerland, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Belinda Bencic, of Switzerland, reacts to Sara Errani, of Italy, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Belinda Bencic, of Switzerland, reacts to defeating Sara Errani, of Italy, in three sets during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)