NEW YORK — The Latest on the US Open (all times local):
4:40 p.m.
Serena Williams is three wins away from completing the first Grand Slam since 1988 after a crisp straight-set victory over young American Madison Keys.
The 21-time major champion had been getting off to slow starts recently but was focused from the beginning Sunday, winning 6-3, 6-3 in just 68 minutes in the fourth round.
She faces sister Venus in the quarterfinals.
The 20-year-old Keys nearly matched Williams booming serve for booming serve but made just enough mistakes. She had 19 unforced errors to just six for Williams, including six double-faults — most of them coming at inopportune times, including match point.