Australia defy 'heartbreak' to take charge against Mexico in BJK Cup

Samantha Stosur, in her first match as captain, picked Hunter as her number two singles player, but she suffered a ruptured tendon during a practice session ahead of the clash in Brisbane.

"I am devastated and heartbroken," said Hunter, the world's number three doubles player, who will now almost certainly miss the Paris Olympics this summer.

Daria Saville stepped in and blew Marcela Zacarias off court 6-1, 6-0 in under an hour to put Australia within reach of the season-ending finals in Seville.

"I thought I played pretty well," said Saville, who recently moved back into the world's top 100. "I was determined and clearly that showed, so very happy.

"Yesterday was a pretty tough day for all of us, emotional, and it was so nice to have Stormy here supporting us," she added of Hunter, who was sitting courtside with her leg propped up.

In the first singles rubber against an understrength Mexico, Arina Rodionova opened her first BJK Cup tie in eight years with a battling 3-6, 6-3, 6-1 win over Giuliana Olmos.

Rodionova struggled to get going but finally hit her stride to win nine of the last 10 games and emphatically put the hosts on the front foot.

"I just tried to do my best to stay in the match and hope I got my chance somewhere," said Rodionova.

"I'm just happy I could help out the team. It's so special playing for your country."

Mexico are without their three highest-ranked singles players, including world number 100 Renata Zarazua, and face an uphill task in the reverse singles on Saturday.