Roger Federer, of Switzerland, celebrates his 6-4, 7-5 win over Stan Wawrinka, of Switzerland, in the men's final of the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, poses with the trophy after his win against Stanislas Wawrinka, of Switzerland, in the finals of the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, poses with his trophy and the Swiss flag after defeating Stan Wawrinka, also of Switzerland, in their final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Elena Vesnina, of Russia, poses with the trophy and a Russian flag after her win against Svetlana Kuznetsova, of Russia, in the women's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, celebrates with the trophy after his win against Stanislas Wawrinka, of Switzerland, in the finals of the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Elena Vesnina, of Russia, celebrates her 6-7 (6), 7-5, 6-4 win against Svetlana Kuznetsova, of Russia, in the women's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Stan Wawrinka, of Switzerland, follows through on a return to Roger Federer, of Switzerland, during the men's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Stan Wawrinka, of Switzerland, hits to Roger Federer, of Switzerland, during the men's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, hits to Stan Wawrinka, of Switzerland, during the men's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, celebrates his win against Stan Wawrinka, also of Switzerland, in their final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Elena Vesnina, of Russia, celebrates her win against Svetlana Kuznetsova, of Russia, in the women's final at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Elena Vesnina, of Russia, hits to Svetlana Kuznetsova, also of Russia, during a final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Svetlana Kuznetsova, of Russia, hits to Elena Vesnina, also of Russia, during a final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Elena Vesnina, of Russia, serves to Svetlana Kuznetsova, also of Russia, during a final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Svetlana Kuznetsova, of Russia, hits to Elena Vesnina, also of Russia, during a final match at the BNP Paribas Open tennis tournament, Sunday, March 19, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, right, hugs Jack Sock after his win a semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 18, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
United States' Jack Sock hits to Roger Federer, of Switzerland, during a semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 18, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Jack Sock hits to Roger Federer, of Switzerland during a semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 18, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, hits to Jack Sock during a semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 18, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)
Roger Federer, of Switzerland, hits to Jack Sock during a semifinal match at the BNP Paribas Open tennis tournament, Saturday, March 18, 2017, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)