Mark Boucher extended South Africa's lead, South Africa v Sri Lanka, 1st Test, Centurion, 2nd day, December 16, 2011© Associated Press
Angelo Mathews had Ashwell Prince caught behind, South Africa v Sri Lanka, 1st Test, Centurion, 2nd day, December 16, 2011© Associated Press
So close: AB de Villiers looks round after being caught at point, South Africa v Sri Lanka, 1st Test, Centurion, 2nd day, December 16, 2011© Associated Press