It was the joint-second-longest over ever bowled in T20 international cricket. It came in the 11th over of a nondescript match in the middle of a series between the previous World Cup finalists that are preparing for the next edition. It would prove quite instructive for both teams ahead of the marquee tournament. After a less-than-impressive spell with the new ball, Arshdeep Singh was brought back into the bowling and immediately saw his full-ish ball, at pace, picked up by Quinton de Kock, fly behind him for six. Seemingly rattled, he then proceeded to bowl seven wides, each of them to de Kock and six of them trying to deny him connection, with the wide-of-off-stump line. Part of it was due to the dew, typical of gripping the white ball under the lights in the colder months in North India, and part of it was due to an onslaught from de Kock that left India’s bowlers scrambling. The returning wrecking ball of South Africa with his phlegmatic face betraying no emotion, had scored 70 of …