DURBAN (Agencies) - South African quick Morne Morkel claims the Proteas pace attack has its tail up heading into Friday's one-day series decider in Durban against Australia. Morkel was outstanding at St George's Park, his man-of-the-match effort of 4-22 in the 80-run win comfortably the best bowling performance by any player so far on tour. The 27-year-old was well assisted by opening bowler Lonwabo Tsotsobe who claimed 2-32 and looks to have really found his stride as an international seamer. The spearhead of the Proteas attack Dale Steyn has yet to leave his mark, but Morkel and Tsotsobe have picked up the slack, Morkel putting his form down to the guidance provided by champion South African quick Allan Donald. "The way we've trained the past couple of weeks, especially under Allan, the way he's put us through our paces, has paid off," Morkel said. "We knew as a bowling unit we needed to put in a solid performance and gladly things went my way. Lopsy (Tsotsobe) has been outstanding with the new ball up front and as a combination we've been bowling very well," he added. Australia won by 93 runs in Centurion and South Africa by 80 in Port Elizabeth, but Morkel is anticipating a tight end to the series in Durban, with everything at stake. "Luckily we've picked up some momentum and confidence but definitely come Durban I think it's going to be a cracking game of cricket," Morkel said.