Vince: We must believe England can retain Ashes

James Vince hit 55 in his latest innings. Credit: PA

James Vince hopes England can remain in the Ashes despite the fact his rearguard effort was cut off by a devilish crack in the WACA pitch as Mitchell Starc served up an unplayable delivery.

England's stylish number three was in the process of building the most important innings of his Test career to date, just when the tourists needed him most.

But after unfurling 12 trademark boundaries, he was bowled off-stump when left-armer Starc hit a crack from round the wicket and found deviation Vince admits would have defeated him every time.

Vince was down on his luck but not on himself as he reflected after the fourth day on England's perilous situation - still 127 runs behind and seriously up against it to bat out the match.

"We have two guys (Jonny Bairstow and Dawid Malan) at the crease who spent a lot of time there in the first innings. We have to have belief we can stay in the series," he said.

"It's still frustrating to get out, but it's easier to take than the ones where you feel like you're at fault yourself. If I faced that another 20 or 30 times, I think it would get me out every time."