The Latest: Serena Williams into Australian Open 4th round

MELBOURNE, Australia (AP) — The Latest on Saturday at the Australian Open (all times local):
3:40 p.m.
Seven-time champion Serena Williams has advanced to the fourth round at Melbourne Park with a 6-2, 6-1 win over Dayana Yastremska.
The 16th-seeded Williams has now won 20 consecutive sets at Melbourne Park, having not dropped a set in her 2017 title run and winning three rounds here this year in straight sets. She did not play here in 2018 following the birth of her daughter.
Yamstremska