Former New Zealand skipper Brendon McCullum has warned of a looming potential crisis in international cricket. McCullum said that the absence of AB de Villiers from the South Africa side for the Test series against England is "another red-flag moment" for Test cricket and warned of a "tipping point" for the game as a whole. On the other hand , Former England captain Brearley termed de Villiers' absence a "wake-up call".
