JOHANNESBURG - Spain’s Ivan Cantero and South African Keenan Davidse both hit nine birdies in their opening rounds of 64 to sit top of the leaderboard at the DP World Tour’s Jonsson Workwear Open at the Glendower Golf Club on Thursday.

They hold a one-shot lead over locals Louis de Jager, Oliver Bekker and Thriston Lawrence, who carded 65s on a low scoring day on Johannesburg's East Rand.