South Africa vs Australia 2018, 1st Test, Day 2: 5 things we learnt from the day

#1 Mitchell Starc reverse-swings his way to a superb fifer

The Aussie pace trio bowled brilliantly as well and took advantage of the opening created by Lyon. They used reverse-swing to great effect.

Starc, in particular, was magnificent. After he bowled four overs with the new ball, he was taken off. He was then brought back when de Villiers and du Plessis were stitching a partnership and helping South Africa rebuild.

However, in his first over of the second spell, Starc got rid of the South African skipper as he edged a reverse-swinging delivery to the keeper. Theunis de Bruyn looked at sea against the left-arm quick and finally edged one to the keeper to give Starc his second wicket.

After De Kock was dismissed and with the lower-order in, Steve Smith recalled his spearhead for his last spell of the day and Starc was bang on the money. He wrapped up the tail to give Australia a huge lead of 189 runs. On a sluggish track, reverse-swing was always going to be the key and Starc used it superbly.

He finished with 5/34 to go with a useful 35 earlier in the day and capped off a fabulous day.