Roger Federer won the decisive singles match on Sunday to give Switzerland a 3-2 win over Kazakhstan in the Davis Cup and a spot in the semifinals for the first time in 11 years. Federer cruised to a 7-6 (0), 6-2, 6-3 victory over 64th-ranked Andrey Golubev, then ran across the court to embrace team captain Severin Luethi. ''We're very relieved and very happy,'' said the 32-year-old Federer, who has never won a Davis Cup title. ''It was a long weekend with a lot of tennis.'' Trailing 2-1 after losing Saturday's doubles, Switzerland had drawn level when Australian Open champion Stanislas Wawrinka beat Mikhail Kukushkin 6-7 (4), 6-4, 6-4, 6-4. More...