Miami Open: Ashleigh Barty, Stefanos Tsitsipas Advance

Ashleigh Barty looked sharp in a straight-sets victory over Jelena Ostapenko at the Miami Open, while men's 2nd seed Stefanos Tsitsipas cruised past Damir Dzumhur.

World number one Ashleigh Barty looked sharp in a straight-sets victory over Jelena Ostapenko Saturday at the Miami Open, where men's second seed Stefanos Tsitsipas cruised past lucky loser Damir Dzumhur. Defending champion Barty defeated the former French Open champion from Latvia 6-3, 6-2 to set up a fourth-round clash with former world number one Victoria Azarenka. Greece's Tsitsipas -- ranked fifth in the world but seeded second behind world No. 2 Daniil Medvedev in the Masters 1000 event that is missing top-ranked Novak Djokovic, world number three Rafael Nadal and No. 4 Dominic Thiem as well as Roger Federer and Andy Murray -- was untroubled in a 6-1, 6-4 over Bosnian lucky loser Damir Dzumhur. Tsitsipas, coming off a runner-up finish at Acapulco last week, hit 10 of his 18 winners off his forehand and committed only nine unforced errors as he relentlessly pressured his opponent. "There isn't much I can tell you. It was a great match," Tsitsipas said. "I started the match very strong, breaking him twice and taking a big lead in the score, and I think the things worked out by themselves after that.