Novak Djokovic, of Serbia, serves to John Isner during their semifinal at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. Djokovic won 7-5, 6-7 (2), 6-1. (AP Photo/Mark J. Terrill)

Indian Wells Tennis

Novak Djokovic, of Serbia, serves to John Isner during their semifinal at the BNP Paribas Open tennis tournament, Saturday, March 15, 2014, in Indian Wells, Calif. Djokovic won 7-5, 6-7 (2), 6-1. (AP Photo/Mark J. Terrill)

Top Ranked Players
More Rankings