Rory McIlroy started slowly and finished poorly, but was brilliant in between, in Round 2 of the BMW South African Open.
McIlroy shot 4-under 68 on Friday and enters the weekend at 9 under par, three back of leader Graeme Storm (63).
McIlroy, who opened in 5-under 67, was one off the lead after Day 1 at Glendower Golf Club in Johannesburg, South Africa.
But following a bogey on his second hole and a double bogey on his fourth hole in the second round, he was nine in arrears. He steadied himself with pars over his next three holes, and then he took off.