"I Pinch myself every day that I'm opening the batting for Australia in Test matches, especially on an occasion like this at the Sydney Cricket Ground. And from now until I retire, I want to focus on Test cricket as much as I can, because that's the way forward for me," Warner wrote in a column for Herald Sun.

"I started off playing Twenty20 and it was fantastic - I still love playing for my country in that format. But in the future I may need to weigh up my options and at the very least, consider how much longer I play in the IPL for.

"I'll play in the IPL this year, but the schedule is so hard for us to play and there's six weeks you could have off," he added.

The 28-year-old burly cricketer said he doesn't want to burn out playing too much cricket as the next five years of his career will be crucial.

"We've got a long 18 months ahead and I need to have a clear mind about where I want to go for the next five years right through to the end of my career," he wrote.

"My forearm and thumb are both really sore leading into this Test, not that there's anything courageous about me taking the field.

But it's more mental tiredness that I'm worried about. I've felt it before and I don't want to burn out."

Explaining his reasons, Warner further said: "You've got the greats of the game that have scored over 15,000 runs and over 10,000 runs, but they never had to balance the amount of cricket that's played now, particularly Twenty20s.

"For myself it's about sacrificing some things to try and get myself an extra 50 Test matches and play the best cricket I can. To do that, you need to weigh up your options.

"I never want Test cricket to be taken away from me or hindered by exhaustion. I don't want anything clouding my mind or any regrets saying, 'if I didn't play this T20 series I might have been better'.

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