Aus vs Ind 2018-19: 5 Points that will decide the second Test 

#1 Ashwin vs Australia's left-handers

Ashwin celebrates one of his six wickets in Adelaide

The last time India were in Australia, Ravichandran Ashwin was dropped for the Adelaide Test, with Karn Sharma being selected instead. Since then Karn Sharma has not played another Test, while Ashwin has established himself as one of the best spin bowlers of his generation.

Ashwin's performance in the first Test emphasized this. While his figures were good, having taken three wickets in each innings, Ashwin's performance was even better than the statistics may show, as he tied down one end for the majority of the time.

Ashwin was particularly effective against the left-handers, as he has been for most of his career. Five of Ashwin's six wickets were left-handed batsmen, with him dismissing Usman Khawaja in both innings.

Australia does not lack left handers for Ashwin to bowl at either, with six in their team, and four of them in their top six.

Furthermore, most of Australia's batsmen are generally more confident facing pace bowling, with Peter Handscomb perhaps being the only exception. Usman Khawaja in particular, has struggled with off-spinners throughout his career. While he has improved since his early performances in Test cricket, where Graeme Swann had him wrapped around his finger, Khawaja's two dismissals to Ashwin in Adelaide are ominous.

For Ashwin, it is an ideal scenario, coming up against a team full of left handers who struggle against spin. Conditions may not be as favorable towards the spinners in Perth as they were in Adelaide, but Ashwin has the skill to be effective regardless.