India's 3-1 defeat in Australia exposed the fragility of their top order, but equally unmissable was how much they rely on pace spearhead Jasprit Bumrah, who gave it all until he broke down in the series finale in Sydney.

Tough decisions might need to be made for India's slumping Test cricket team in desperate need of a reboot after falling away in Australia.

Cricket's World Test Championship final is still five months away but it is already playing on the mind of Australia skipper Pat Cummins, saying the defence of their title is "a huge goal" after conquering India.