South Africa have beaten Sri Lanka by 153 runs in the first Test at Galle.
After declaring on 206-6 in their second innings, South Africa set Sri Lanka 370 to win, but the hosts never came close to recording a victory.
With the exception of Kaushal Silva and Kumar Sangakkara the hosts' batsmen struggled to bed themselves in, as South Africa's attack - led admirably by Dale Steyn - whittled through the batting lineup.
Steyn took the wicket of Silva and eight others as he fell just one short of a 10-wicket haul.
If South Africa win the second Test in Colombo, which starts on Thursday, they will overtake Australia as the world's best Test side.