South African fast bowlers Dale Steyn and Vernon Philander helped gain an advantage over Sri Lanka on the second day of the first Test at Kingsmead in Durban.
Steyn's four-wicket haul restricted Sri Lanka to just 191.
Philander, along with fellow fast bowlers Duanne Olivier and Kagiso Rabada, kept the pressure on the Lankans.
The hosts, well inside their second innings, have got a lead of 170 with six wickets in hand.

Pogacar wins third Flanders crown but faces fine for running red light
Thuram and Martinez star as Inter dismantle Roma
Silva to exit Man City at end of season, assistant manager confirms
Penalty heroics help Leeds beat West Ham to reach FA Cup semis
Pogačar wins Tour of Flanders for record-equalling third time
