Weight of expection buries Sam Stosur again as she is bundled out of US Open WIN or lose, Sam Stosur cannot shake the weight of Australias expectations. The 2011 champion was bundled out of the US Open in the first round yesterday by Victoria Duval, a 17-year-old American qualifier ranked 296th. Stosur is on track to fall out of the world's top 15 and miss the season-ending Championships for the first time in four years, but she will remain the host nation's go-to girl at the Australian Open, a position the Queenslander has not been comfortable with in recent years. Her priority now is to find a replacement for David Taylor, her coach of six years with whom she parted ways less than a fortnight ago. "I guess now for sure you start looking around, talk to a few more people about things," she said. It's certainly not something that I was really doing before I was playing here, probably wanted to do during the event. Fox Sports tennis expert Wally Masur highlights the strengths and weaknesses of Sam Stosur. Stosur admitted in the lead-up to the last Grand Slam of the year the timing of the split was not ideal, but she refused to blame the change for her performance. It certainly wasn't the preparation I've been used to. But, again, everything happens for a reason. Things happen when they happen," Stosur said. Take nothing away from Duval, who held her nerve to claim her maiden Grand Slam victory 5-7 6-4 6-4 on her fourth match point. The Miami-born teenager's grit was perhaps not surprising, given she had survived being held hostage at the age of seven by gunmen while living in Haiti, and nearly lost her father in the 2010 earthquake that devastated the Caribbean country. Samantha Stosur has suffered a shock first round loss to America teenager Victora Duval at the US Open. But 29-year-old Stosur should have been experienced and clinical enough to close out the match while leading by a set and 4-2. Instead it became an all-too-familiar tale of the Queenslander losing a match she should have won. Known for her self-discipline and hard work, Stosur's physical fitness and on-court weapons are the envy of the women's tour. Her new coach will have as much work ahead of them off the court and above the shoulders than anything if she is to advance beyond the third round of her home Grand Slam for the first time since 2010. By January, New York will be a distant memory but the home fans" desire to see her do well will be as strong as ever. Victoria Duval raises her arms after her stunning upset victory over 2011 US Open champion Samantha Stosur.