New York crowd sings "Happy Birthday" to Ons Jabeur after her US Open first round win.
Daniil Medvedev shares his views on why tennis can be so maddening.
One of tennis' top couples, Katie Boulter and Alex de Minaur, inspire each other to new heights.
The German took heat from her opponent and the crowd on Monday at the Open.
Grand Slam champions bumped into each other on the street and will reunite in round two of the US Open.
Relegated to Court No. 5, fourth-seeded Holger Rune failed to survive the US Open first round.
No. 8 seeded Maria Sakkari considers a break after suffering her third straight Grand Slam opening-round exit.
