ICC approves day-night Test with coloured balls

The ICC today gave its seal of approval to the day/night Test matches while leaving the member Boards to decide on the type and colour of the ball to be used, as it announced new playing conditions for Tests, ODIs and T20 Internationals ahead of Sri Lanka-New Zealand series beginning Tuesday.

Pink or Orange ball is most likely options for night Tests

Cricket Australia have concluded its experiments to find a suitable coloured ball for the day-night Tests and have submitted its findings with the ICC.