After Serena Williams beat her sister Venus Williams 6-2, 1-6, 6-3 on Tuesday, it was clear that she was drained. Not only did Venus put up a better fight than most of Serena's opponents by extending her to three sets, but playing against a family member who you share a strong bond with puts some extra strain on your emotions.

Because of all of this, Serena wasn't exactly in a jovial mood at the post-match press conference.

Despite the fact that the reasons why should have been obvious, one reporter decided he needed to do some investigating on the matter himself—and Serena handled the situation in the best way possible:

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[via BuzzFeed]