The cricket world is watching with interest as trans-Tasman rivals Australia and New Zealand face off with a revolutionary pink ball at Adelaide Oval from Friday.
Zaheer Abbas, the new president of the International Cricket Council, hailed the day-night Test concept as 'thoroughly enlightened'.
The pink ball's capacity to swing freely and create collapses at night in preparatory matches means the final session of play has become more problematic than the first two sessions.
It leaves rival skippers Steve Smith and Brendon McCullum with big decisions to make this week.
Smith indicated his thinking when captaining New South Wales in this season's day-night domestic Sheffield Shield round by declaring on day one to utilize the swing of paceman Mitchell Starc who grabbed three wickets in the evening session with the aid of some noticeable in-swingers.

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