Torneo de Sala Davidoff Tenis Torneo de Sala Davidoff SUIZA Oct. 23, 2008
Switzerland's Roger Federer reacts after winning a round of sixteen match against Finland's Jarkko Nieminen at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Switzerland's Roger Federer returns a ball to Finland's Jarkko Nieminen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Switzerland's Roger Federer returns a ball to Finland's Jarkko Nieminen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Switzerland's Roger Federer returns a ball to Finland's Jarkko Nieminen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Argentina's Juan Martin Del Potro serves a ball to Switzerland's Stephane Bohli during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
United States' James Blake reacts after winning his round of sixteen match against Spain's Oscar Hernandez at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
United States' James Blake serves a ball to Spain's Oscar Hernandez during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Belgium's Kristof Vliegen returns a ball to Argentina's David Nalbandian during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Belgium's Kristof Vliegen returns a ball to Argentina's David Nalbandian during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Belgium's Kristof Vliegen returns a ball to Argentina's David Nalbandian during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Argentina's David Nalbandian returns a ball to Belgium's Kristof Vliegen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Argentina's David Nalbandian serves a ball to Belgium's Kristof Vliegen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
Argentina's David Nalbandian returns a ball to Belgium's Kristof Vliegen during their round of sixteen match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Thursday, Oct. 23, 2008. AP Photo/Keystone, Georgios Kefalas
United States' Mardy Fish serves a ball to Spain's Feliciano Lopez during their second round match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Wednesday, Oct. 22, 2008. AP Photo/Keystone, Georgios Kefalas
United States' Mardy Fish serves a ball to Spain's Feliciano Lopez during their second round match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Wednesday, Oct. 22, 2008. AP Photo/Keystone, Georgios Kefalas
United States' James Blake serves a ball to Germany's Nicolas Kiefer during their first round match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Wednesday, Oct. 22, 2008. AP Photo/Keystone, Georgios Kefalas
United States' James Blake serves a ball to Germany's Nicolas Kiefer during their first round match at the Davidoff Swiss Indoors tennis tournament in Basel, Switzerland, Wednesday, Oct. 22, 2008. AP Photo/Keystone, Georgios Kefalas