Roger Federer beaten in Davis Cup tie in Switzerland . The Swiss star was forced to retire after a shock defeat by world number one Rafael Nadal on Tuesday night. Mardy Fish saw off Stanislav Wawrinka in earlier match . Holders Spain `` I owe it to Jim Courier ( American Davis Cup captain ) -- he was on at me to hit all my shots . leading Kazakhstan 2-0 in Oviedo .
Roger Federer beaten in Davis Cup tie in Switzerland . The Swiss star was forced to retire after a shock defeat by world number one Rafael Nadal on Tuesday night. Mardy Fish saw off Stanislav Wawrinka in earlier match . Holders Spain leading Kazakhstan 2-0 in Oviedo .