Tensions reached boiling point on a topsy-turvy opening day between Pakistan and South Africa at Centurion. On a spicy pitch that showed signs of uneven bounce, South Africa started the day well reducing the visitors to 56-4 with debutant Corbin Bosch striking with his first delivery in Test cricket. The exact tipping point for the altercation is unclear but TV images and the stump mic both picked up Ghulam first swearing at Kagiso Rabada and then at South Africa wicketkeeper Kyle Verreynne.