Australian duo Nathan Green and Andrew Buckle are just two shots off the lead after the opening round of the Viking Classic in Mississippi. Green and Buckle shot five-under-par rounds of 67 to be in a share of third place, just two strokes behind American Marc Turnesa (65) and veteran Brian Gay (66). Five birdies in his first seven holes helped Buckle get off to a blistering start, but a bogey at eight dropped him back to four-under. A birdie at 13 was offset by a bogey at 17, but Buckle responded well by making a tough birdie at the long par-five 18th to finish his round in style. Green was just as impressive in his round, with the underrated New South Welshman making six birdies and one bogey at the picturesque Annandale Golf Club. Of the other Australians competing, Nick Flanagan fired a 68 to be tied for ninth, while Steve Allan and Gavin Coles were the only other Aussies to finish the day under par after rounds of 71. Compatriots Jason Day and Brett Rumford fired 73s, David Lutterus carded a 74, while John Senden (75), Matt Jones (76), Mark Hensby (78) and Stuart Deane (78) had disappointing opening days. Viking Classic, Mississippi Scores from Round 1 (Par 72) -7: Marc Turnesa 65 -6: Brian Gay 66 -5: Lee Janzen 67, Jay Williamson 67, Dicky Pride 67, Nathan Green (Australia) 67, Brad Adamonis 67, Andrew Buckle (Australia) 67 -4: Robert Gamez 68, Michael Bradley 68, Brad Elder 68, Todd Hamilton 68, Dan Forsman 68, Garrett Willis 68, Casey Wittenberg 68, Doug LaBelle II 68, Nick Flanagan (Australia) 68, Tim Petrovic 68, John Huston 68, Greg Kraft 68, Bo Van Pelt 68 Also: -1: Steve Allan (Australia) 71, Gavin Coles (Australia) 71 +1: Jason Day(Australia) 73, Brett Rumford Australia) 73 Phil Tataurangi (New Zealand) 73 +2: David Lutterus (Ausralia) 74, Tim Wilkinson (New Zealand) 74, Grant Waite (New Zealand) 74 +3: John Senden (Australia) 75 +4: Matt Jones (Australia) 76 +6: Mark Hensby (Australia) 78, Stuart Deane (Australia) 78