Roger Federer, of Switzerland, returns a shot to Grega Zemlja, of Slovenia, during the first round of the 2013 U.S. Open tennis tournament Tuesday, Aug. 27, 2013, in New York. (AP Photo/Mike Groll)
Roger Federer, from Switzerland, hits a backhand against Tommy Haas, from Germany, during a match at the Western & Southern Open tennis tournament, Thursday, Aug. 15, 2013, in Mason, Ohio. (AP Photo/Al Behrman)
Rescue personnel work at the site where two passenger trains collided head-on in Granges-pres-Marnand, western Switzerland, Monday, July 29, 2013. Numerous people have been injured. (AP Photo/Keystone, Laurent Gillieron)
Rescue personnel work at the site where two passenger trains collided head-on in Granges-pres-Marnand, western Switzerland, Monday, July 29, 2013. Numerous people have been injured. (AP Photo/Keystone, Laurent Gillieron)
**FILE** Washington Kastles' Martina Hingis, of Switzerland, reacts during a World Team Tennis women's doubles match against the Boston Lobsters, Tuesday, July 9, 2013, in Washington. (AP Photo/Nick Wass)
Roger Federer of Switzerland reacts during his match against Daniel Brands of Germany, a second round match at the Suisse Open tennis tournament in Gstaad, Switzerland, Thursday July 25, 2013. (AP Photo/Keystone/Peter Schneider)
Monsignor Nunzio Scarano, shown in an undated photo in Salerno, Italy, is accused of corruption and slander in connection with a plot to smuggle 20 million euros ($26 million) into Italy from Switzerland without reporting it to customs officials. (AP Photo/Francesco Pecoraro)
Sergiy Stakhovsky of Ukraine reacts after winning the third set against Roger Federer of Switzerland during their Men's second round singles match at the All England Lawn Tennis Championships in Wimbledon, London, Wednesday, June 26, 2013. (AP Photo/Alastair Grant)
** FILE ** This is a Nov. 30, 1998, file photo of financier Marc Rich shown in in Zug, central Switzerland. An associate of Marc Rich said Wednesday, June 26, 2013, that the trader pardoned by President Clinton has died in Switzerland. (AP Photo/Guido Roeoesli File)