Serena Williams rolls into Aussie Open last 16

MELBOURNE, Australia – Serena Williams swatted aside Ukrainian teenager Dayana Yastremska in straight sets Saturday, January 19, powering into the Australian Open last 16 as she chases a record-equalling 24th Grand Slam title.

Williams defeated world number 57 Yastremska 6-2, 6-1 and next faces either sister Venus, who is unseeded this year, ...