Rain reduces Royal Johannesburg to three-round event

"It's tough when you have to do this but we suspended play twice and the course became unplayable very quickly, particularly ​the lower-lying holes," said ‌tournament director David Williams.

"We're going to restart tomorrow at 6.30​am, there's still about five or six ‍games to tee off, but the third round will be the final round."

The overnight ​leaders ​were yet to ​begin their third rounds ​when play was halted.

Spain's Eugenio Chacarra will resume on 15-under par with a two-stroke lead over Jayden Schaper, with fellow South African Branden Grace and Englishman John Parry third on 12-under.