Olympic champion Andy Murray battled into the second round of the US Open on Monday night while defending women's champion Samantha Stosur and third seed Maria Sharapova cruised in their opening matches.
Britain's third-seeded Murray dispatched Russia's 73rd-ranked Alex Bogomolov 6-2, 6-4, 6-1.
Australian seventh-seed Stosur began her repeat bid with a 6-1,6-1 victory and Sharapova dispatched Hungary's Melinda Czink 6-2, 6-2.
Belgium's Kim Clijsters, playing in the final event of her career at age 29 defeated US teen Victoria Duval 6-3, 6-1, on the same court where she won US Open crowns in 2005, 2009 and 2010 and hopes to claim another in her final bow.
