South Africa collapsed to 116-8 against Pakistan as fast bowler Mohammad Abbas ran riot on Day 4 of the first test as the tourists closed in on their first test win in South Africa in 18 years.

Pakistan is likely to tinker with the playing XI for the second and final test against South Africa at Newlands Cricket ground.

South Africa were 32 runs shy of winning the first test while Pakistan needed only two wickets for success as the contest headed to a thrilling finish on the fourth day at Centurion on Sunday.