Ashleigh Barty of Australia in action against Eugenie Bouchard of Canada at the Miami Open.
Ashleigh Barty of Australia in action against Eugenie Bouchard of Canada at the Miami Open. ERIK S. LESSER

Barty stuns Bouchard to extend winning streak

ASH Barty has stretched a stunning singles revival to eight successive wins after upstaging Wimbledon finalist Eugenie Bouchard in the Miami Open's first round.

Barty will climb to a projected career-high ranking of No.84 after stunning former world No.5 Bouchard 6-4 5-7 6-3 to earn a second-round tilt at fellow Queenslander Sam Stosur.

Barty's victory adds to a streak of seven wins - all posted at the Malaysian Open, where she claimed two qualifying victories before snaring five main-draw scalps to secure the tournament.

A wildcard entrant in Miami, Barty preyed on Bouchard's dodgy serve - breaking six times for the match - and was rewarded for returning pressure when Bouchard double-faulted twice in the last game.

A Wimbledon junior champion, Barty famously walked away from tennis to play cricket in 2014.

But her return to her first sporting love has now scaled new heights with guaranteed main draw participation at the French Open, Wimbledon and US Open.

The Queenslander's doubles has been thriving, too, with victory in Kuala Lumpur with Casey Dellacqua.

Ajla Tomljanovic's match with CiCi Bellis was cancelled when the American succumbed to suspected gastroenteritis and withdrew from the tournament.

Bellis was replaced by Magda Linette and the match was rescheduled.

Miami officials would not comment on reports of widespread food poisoning similar to that which forced Nick Kyrgios out of an Indian Wells quarter-final clash with Roger Federer.

Kyrgios, Bernard Tomic, Stosur and Daria Gavrilova all will be in action over the next two days.

Jordan Thompson lost 1-6 6-4 6-3 to Japan's Yoshihito Nishioka.