England's Simon Dyson and South Africa's Trevor Fisher have claimed the clubhouse lead at the Tshwane Open, before play was suspended due to bad weather.
Dyson carded a seven-under 65 while Fisher was unable to finish his round, ending the day on seven-under after 16 holes.
Jared Harvey, Ross Fisher and Erik van Rooyen all scored six-under 66s to share third place with Darren Fichardt and Danie van Tonder, who were both six-under after 17 holes.
England's Chris Wood, Denmark's Lucas Bjerregaard and India's Shiv Kapur finished their rounds two shots off the pace.