Roger Federer, of Switzerland, celebrates his win against Alexandr Dolgopolov, of Ukraine, during their semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Alexandr Dolgopolov, of Ukraine, returns a shot to Roger Federer, of Switzerland, during their semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Alexandr Dolgopolov, of Ukraine, returns a shot to Roger Federer, of Switzerland, during their semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, returns a shot to Alexandr Dolgopolov, of Ukraine, during their semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, serves to Alexandr Dolgopolov, of Ukraine, during their semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)