John Isner is one of two American men standing at the Australian Open. Isner advanced to the fourth round along with Andy Roddick. It's only the second time the 24-year-old player has gone that far at a Grand Slam. Fresh off his first ATP title win in Auckland this month, the big-serving Isner defeated 12th-seeded Gael Monfils of France 6-1, 4-6, 7-6 (4), 7-6 (5). More...