Aussie tennis brat loses his cool again in first round defeat to Britain's Andy Murray at the US Open.
Swiss ace cruises to first round win but a clutch of men's players are made to work overtime at US Open.
Marina Erakovic forced to retire with an injury when 6-2 3-0 down against Simona Halep at Flushing Meadows.
While the Australian has backed himself to pull off a shock, the Scot might be too savvy in first round match.
Last year's US Open runner-up falls at the first hurdle, losing to Frenchman Benoit Paire at Flushing Meadows.