Adam Scott makes impressive start to Masters defence Adam Scott plays a bunker during his opening round at Royal Melbourne Source: Getty Images ADAM Scott has continued his golden start to the Australian summer by grabbing a share of the clubhouse lead during the first round of the Australian Masters at Royal Melbourne. Scott shot a four-under par 67 to draw alongside German Maximillian Kiefer. The US Masters champion and world No2 started on his day on the 11th and made a quick birdie at the par four 13th. His round then stalled until he hit the 1st, whereupon he went on a birdie blitz, making four in quick succession as he moved to five under. He dropped a shot at the pour four 8th but it was still good enough to share the clubhouse lead midway through the opening day. Scott, fresh from winning the Australian PGA on Queensland's Gold Coast last week, is aiming to become only the second player in history to win the triple crown in the same year - Robert Allenby is the only other player to achieve the feat. While Scott thrilled the galleries, Jarrod Lyle took centre stage this afternoon as he made an emotional return from a second bout of cancer. Lyle, playing his first professional tournament in more than 18 months, quickly settled into stride as he gave himself a chance at eagle at the par five 2nd. Lyle settled for a birdie and stayed there until the 7th, when he found trouble in one of the greenside bunkers. He eventually settled for a bogey as he moved back to even par. Kieffer only got into town on Tuesday night but quickly acquitted himself to the course. "Yes, I love it, it is great," he said of Royal Melbourne. I think it is testing every part of your game and .... you have to be a bit creative and I think it is great fun. I am playing quite nice the last few weeks.