Sumit Nagal was beaten by world number 46 Albert Ramos-Vinolas 6-4, 2-6, 5-7.
Former world No. 1 Ana Ivanovic exited the Olympic Games in the first round on Saturday, though the Serb refused to blame the wind or soaring temperatures that some players said were making it tricky to play in Rio. Ivanovic went one set up against world No. 12 Carla Suarez Navarro before losing the next two error-strewn sets to the Spaniard. Ivanovic lost 2-6 6-1 6-2. "It was a tough draw for the first round," said Ivanovic, the former French Open winner currently ranked as world No. 26.