up Louis Oosthuizen showed no ill-effects of his playoff heartbreak and long-haul trek to Southeast Asia to fire an opening six-under 66 at the Malaysian Open Thursday. The South African, who lost out to American Bubba Watson in Augusta Sunday, was tied for third alongside American Jason Knutzon and India's Jyoti Randhawa at the European and Asian Tour co-sanctionned event in Kuala Lumpur. Oosthuizen's compatriot and close friend Charl Schwartzel finished the day in front after a 64 left him one clear of India's Jeev Milkha Singh. The South African duo looked refreshed ahead of their early tee time and they clearly enjoyed each other's company as they laughed and joked in the cool, morning temperatures. Oosthuizen, also grouped with Thailand's Thongchai Jaidee (73), received the loudest cheer from the small galleries that woke early to see how he would react to the agony of missing out in the year's first major. Schwartzel, the 2011 US Masters champion who finished 11th here last year, produced nine birdies at the $2.5 million event in Malaysia as he attempts to win for the first time since his Augusta triumph. World No. 7 Martin Kaymer of Germany had five birdies, two double bogeys, one bogey and an eagle in an eventful 70, a score matched by defending champion Matteo Manassero of Italy.