Roger Federer of Switzerland, returns a ball to Simone Bolelli of Italy, during the first single match of the Davis Cup World Group Semifinal between Switzerland and Italy, at Palexpo, in Geneva, Switzerland, 12 September 2014. EPA/SALVATORE DI NOLFI

Roger Federer of Switzerland returns a ball to Simone Bolelli of Italy during the first single match of the Davis Cup World Group Semifinal match between Switzerland and Italy, at Palexpo, in Geneva, Switzerland, 12 September 2014. EPA/SALVATORE DI NOLFI

Roger Federer of Switzerland returns a ball to Simone Bolelli of Italy during the first single match of the Davis Cup World Group Semifinal match between Switzerland and Italy, at Palexpo, in Geneva, Switzerland, 12 September 2014. EPA/SALVATORE DI NOLFI

Roger Federer of Switzerland reacts after winning a game against Simone Bolelli of Italy during the first single match of the Davis Cup World Group Semifinal match between Switzerland and Italy, at Palexpo, in Geneva, Switzerland, 12 September 2014. EPA/SALVATORE DI NOLFI

Roger Federer of Switzerland celebrates winning against Fabio Fognini of Italy during the third single match of the Davis Cup World Group semi final between Switzerland and Italy at Palexpo in Geneva, Switzerland, 14 September 2014. EPA/SALVATORE DI NOLFI

Roger Federer (up) of Switzerland celebrates with Swiss Davis Cup Team captain Severin Luethi (L) and player Stanislas Wawrinka of Switzerland after winning against Fabio Fognini of Italy during the third single match of the Davis Cup World Group semi final between Switzerland and Italy at Palexpo in Geneva, Switzerland, 14 September 2014. EPA/SALVATORE DI NOLFI