The opening Grand Slam tournament of the year gets under way Monday at Melbourne Park, with top-seeded Andy Murray and Angelique Kerber set to play their first-round matches at the Australian Open. The sun was shining with temperatures of 20 degrees Celsius (68 Fahrenheit) when the gates opened an hour before the scheduled start of play. The forecast high was for 31 C (88 F) rising to 37 C (99 F) on Tuesday. First up on the main Rod Laver Arena court was Romania's Simona Halep playing Shelby Rogers of the United States. Murray was scheduled to play the last day match on Rod Laver, and Kerber, who beat Serena Williams in last year's final, was to open night play.