Day 9 of the US Open is on the slate and the days left at Flushing Meadows are numbered.
However, there is still tons of exciting tennis left to be played at the Open, with the best in the business beginning to match up with the rest of the elite. With very few matches left to be played at the tournament, each contest offers loads of excitement.
On Tuesday, Rafael Nadal, Andy Murray, Vera Zvonareva and Andy Roddick are all in action. Most of the players left in both the men's and women's tournament can make a legitimate case for having a chance to triumph at the Open.
Here are five things to keep an eye out for on Day 9 of the US Open.