The 2009 edition of “arguably, the oldest tournament in the United States still played in its original city” can boast of far more than that, as 56 of the top women and men have gathered together for one of the final tune-up events before the final Grand Slam of the tennis season, The US Open. And this year has a few additional surprises likely to have an impact on the sport. For the casual fan, the new format – the consecutive overlapping of the Women’s Open with the Men’s Masters – guarantees non-stop action over the course of nearly three weeks.