Each day of the tournament, we'll preview and predict three must-see matches at Flushing Meadows.
Denis Shapovalov [Q] vs. Daniil Medvedev
In tennis, all the world is not a big stage—you have to be able to win when no one is looking, too. The 18-year-old Shapovalov showed us what he could do under the spotlight in Montreal, where he beat Juan Martin del Potro and Rafael Nadal. This past week, though, he did the much less glamorous but necessary work of winning three qualifying matches to get into the US Open. Now the world No. 69 will head out to anonymous Court 7 to face the 53rd-ranked Medvedev, a talented, temperamental Russian. It won’t be a big stage, but the stands should be full. Winner: Shapovalov