With his outswinger already causing problems, the slope allowed Asif to nip the ball back into the right-hander as well and it was one of those that crashed into Clarke's pads and finally did for him lbw.
Trott, as he had done on the first morning, looked out of sorts and it was no surprise when he was taken by De Villiers at third slip as Steyn produced a superb outswinger bowled on a perfect line just outside off stump.