James Duckworth has scored the first top-20 win of his career to advance at the Miami Open.
The 29-year-old Australian, who is ranked No.104, stunned eighth seed David Goffin 6-3 6-1 in the second round.
Duckworth needed only 76 minutes to defeat the world No.13 Belgian, striking 22 winners and not facing a break point in a dominant serving display.
Alexei Popyrin continued his winning run too, defeating No.30-seeded American Reilly Opelka 6-4 6-2.
The 21-year-old Popyrin fired 13 aces in the 65-minute win, setting up a third-round showdown with top seed Daniil Medvedev.
"Popyrin is a really great player," Medvedev said of the match-up. "I practised with him a lot during pre-season and I know that he can play some great tennis, so it will be a tough match."
Ajla Tomljanovic and Storm Sanders both lost their second-round matches.
Aussies in action - Miami
RESULTS
Men's singles, second round
Alexei Popyrin (AUS) d [30] Reilly Opelka (USA) 6-4 6-2
James Duckworth (AUS) d [8] David Goffin (BEL) 6-3 6-1
Women's singles, second round
[2] Naomi Osaka (JPN) d Ajla Tomljanovic (AUS) 7-6(4) 6-4
[29] Jessica Pegula (USA) d [WC] Storm Sanders (AUS) 6-3 6-4
Women's doubles, first round
[4] Timea Babos (HUN)/Veronika Kudermetova (RUS) d Ellen Perez (AUS)/Zheng Saisai (CHN) 3-6 6-4 [10-7]
COMING UP
Men's singles, second round
[15] Alex de Minaur (AUS) v Daniel Elahi Galan (COL)
Jordan Thompson (AUS) v [12] Milos Raonic (CAN)
[Q] Thanasi Kokkinakis (AUS) v [29] Marton Fucsovics (HUN)
Men's singles, third round
Alexei Popyrin (AUS) v [1] Daniil Medvedev (RUS)
James Duckworth (AUS) v Alexander Bublik (KAZ)
Women's singles, third round
[1] Ash Barty (AUS) v Jelena Ostapenko (LAT)
Men's doubles, first round
Luke Saville (AUS)/Oliver Marach (AUT) v Kevin Krawietz (GER)/Jan-Lennard Struff (GER)
Women's doubles, first round
Ash Barty (AUS)/Jennifer Brady (USA) v Lucie Hradecka (CZE)/Kristyna Pliskova (CZE)
Storm Sanders (AUS)/Anna-Lena Friedsam (GER) v Vania King (USA)/Yaroslava Shvedova (KAZ)
[WC] Ajla Tomljanovic (AUS)/Heather Watson (GBR) v Anna Kalinskaya (RUS)/Viktoria Kuzmova (SVK)