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Mustard Minute: Grumpy Cat, Minnesota Twins’ bat boy and the return of football
1:15 | Extra Mustard
Mustard Minute: Grumpy Cat, Minnesota Twins’ bat boy and the return of football
Tuesday September 8th, 2015

She's not playing in London at Wimbledon right now, but that doesn't mean Serena Williams can't enjoy tea time with a friend.

On the eve of her U.S. Open quarterfinals clash with sister Venus, Williams took some time to sip tea with Kim Kardashian in New York City.

The ever-classy tennis champion remembered to put her pinky up and appeared perfectly relaxed before the big match, while Kim K smiled with her eyes for the camera like a pro.

Of course, the famous friends took to social media to show off their fun and make us all jealous: ​

• Watch: Squirrel dashes onto the court and disrupts U.S. Open match

- Kayla Lombardo

GALLERY: CLASSIC PHOTOS OF SERENA AND VENUS

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