RIO DE JANEIRO (AP) — The Latest on the Olympics in Rio de Janeiro (all times local):
2:20 p.m.
Serena Williams opened defense of her Olympic singles gold medal with a patchy-at-times 6-4, 6-2 victory over Australia's Daria Gavrilova.
Sunday's match at the Rio de Janeiro games was Williams' first since she won her Open-era record-tying 22nd Grand Slam title at Wimbledon last month.
The American, seeded No. 1, was hardly at her best in the 91-minute contest, compiling 37 unforced errors to 27 winners, and she got broken at love while serving for the first set at 5-3.