A decision on the fitness of Australian women’s cricket captain Jodie Fields will be left until the last minute before the crucial opening Twenty20 Ashes clash at Bellerive Oval.

Fields missed the one-day leg of the series with a broken finger but trained strongly on Tuesday.

“She seemed to get through pretty well,” stand-in skipper Meg Lanning told reporters.

“We’ll just have to see how it pulls up and how she comes up tomorrow.”

The 29-year-old has been a spectator while her side has resurrected the multi-format series against England with two ODI wins.

Australia looked gone when they lost the Test and opening one-dayer to leave themselves with the task of winning five straight matches to stay alive.

The series again looked over when they were 6-199 chasing 269 in Sunday’s third ODI, before superstar Ellyse Perry smashed 90 from 95 balls.

The dual international’s move up the order to number five paid off handsomely and Lanning said moving Perry higher had been considered.

“She’s always had the potential to be a top-six batter and, throughout this series, she’s shown that she can bat in all different situations and can score really big,” Lanning said.

“Wherever she bats, wherever anyone bats, I’m pretty confident they can get the job done.”

Australia need to win the three T20 games in Hobart, Melbourne and Sydney to take the Ashes.

They might have the momentum but they will need to overcome a poor T20 record against England.

The Southern Stars are 5-11 from 17 games and lost all three T20 clashes in the UK last year.

Lanning said her side had the belief to do it.

“We’ve got a lot of momentum from the last two games,” she said.

“We knew from the Test match and the first ODI that we weren’t too far away with our form.

“It’s starting to click now … certainly the confidence is high in our group.”

England took six points in the series with their Test win and another two with victory in the first ODI.

Australia have four points from two ODI wins and can claim another six in the T20 matches.