Aug 17 (Reuters) - Double major winner and world number three Rory McIlroy will tee off alongside U.S. Masters champion Adam Scott at this year's Australian Open in Sydney, organisers said on Saturday. The 24-year-old Briton, who followed up his 2011 U.S Open triumph with a victory at last year's U.S. PGA Championship, will return to play the tournament held at the Royal Sydney Golf Club from Nov. 28-Dec. 1 after a seven-year absence. It will mark the first time he has taken part in the event since 2006, when he finished in a tie for 59th competing as an amateur. ... More...