Serena, Beyonce friendship built on inspiration.

Serena Williams says that she and Beyonce connect because they inspire each other and young girls.

2:47

How Allertova earned the espnW Star of the Day.

Denisa Allertova served former No. 1 Ana Ivanovic the upset and ESPN's Pam Shirver and Prim Siripipat explain what it took to get it done.

1:59

Venus grateful for 18-0 record in US Open first round.

Venus Williams reflects on her first-round win at the US Open, her 77th match in Arthur Ashe Stadium.

1:44

Donaldson credits crowd energy with win.

Jared Donaldson thanks the crowd for supporting him in his first-round upset of David Goffin at the US Open.

0:55

Is the US Open the most difficult major?

From long, late matches to forgetting about Federer, ESPN's Mary Joe Fernandez and Prim Siripipat explain all the reasons they love and hate tennis' last major of the year.

1:31

Keys 'honored' and proud to have reached top 10.

Madison Keys talks about reaching the top 10 for the first time in 2016 when she reached the final in Birmingham.

0:44

Djokovic credits 'unpredictable' Janowicz.

Novak Djokovic praises Jerzy Janowicz after defeating him in the opening round at the US Open.

1:09

Edmund: Best win of my career.

Britain's Kyle Edmund says his surprise straight-sets victory over Richard Gasquet was the best of his career.

0:34

How Shelby Rogers earned the espnW Star of the Day.

Shelby Rogers' coach Marc Lucero tells espnW's Prim Siripipat what it took to pull off the first upset of the US Open.

1:54

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