Martina Hingis led a youthful charge and Australian Open finalist Anke Huber and Magdalena Maleeva were fallen seeds on Monday in a hot , sunny opening to the U.S. Open tennis championships .
<response> <person>Martina Hingis</person> led a youthful charge and <misc>Australian Open</misc> finalist <person>Anke Huber</person> and <person>Magdalena Maleeva</person> were fallen seeds on Monday in a hot , sunny opening to the <misc>U.S. Open</misc> tennis championships . </response>