Rain delays the start of day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park, in Centurion, South Africa.

Pakistan's Babar Azam blocks the ball during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

Pakistan's Saud Shakeel plays a high ball during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park, in Centurion, South Africa.

South Africa's Kagiso Rabada follows through his delivery during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park, in Centurion, South Africa.

South Africa's Marco Jansen, center, celebrates with his teammates after dismissing Pakistan's Babar Azam for 50 runs during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

Pakistan's Mohammad Rizwan reacts after playing a short ball during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

Pakistan's Mohammad Rizwan, left, leaves the crease after being dismissed by South Africa's Marco Jansen, for 3 runs during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

South Africa's Tony de Zorzi, center, reacts after being dismissed on LBW by Pakistan's Mohammad Abbas, for 2 runs during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

Pakistan's Khurram Shahzad, left, and his teammates celebrate a wicket of South Africa's Ryan Rickelton during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.

Pakistan's Mohammad Abbas, left, celebrates with teammates after successfully appealing for LBW against South Africa's Tristan Stubbs during day three of the Test cricket match between South Africa and Pakistan, at the Centurion Park in Centurion, South Africa.