Australia opener Usman Khawaja confident of being fit for second Ashes Test

Khawaja batted at number 4 in the first innings due to back spasms suffered while fielding and was not required in the second innings as Australia won by eight wickets.

With more than a week before the second Test gets underway in Brisbane, Khawaja says he feels good and will be available for selection.

Speaking at his Usman Khawaja Foundation, a charity which helps support children from diverse, rural and low socio-economic backgrounds, the left-handed batter said: "I feel good.

"I'd never experienced it before, but the last few days have been good. I've never had back spasms before, so it's been quite new for me.

"I've been quite lucky. I'm 39 years old [on December 18] and have always had a pretty solid back. Rachel, my wife, has been taking care of me - she's been letting me sleep in a fair bit actually, I've really been taking advantage of it. I should be right."

Khawaja then revealed the lengths he was ready to go to in case he was needed to bat during the run-chase, but Travis Head's quick-fire made it a moot point.

"I'm really glad that we got (the match) done that night, because the next day, I already had the radiology booked," Khawaja said.

"I was going to get an epidural in my back, so I can actually move somewhat. I had it booked in, ready to go, so if the team needed me, I was there again."