Venus Williams 
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Here’s a word of advice: Don’t mess with Venus Williams, because she will call you out, without hesitation. During a recent victory over Barbora Zahlavova-Strycova in Qatar, Williams had to check her opponent after receiving a stare-down.

During the match’s final set, Zahlavova-Strycova wasn’t pleased with the calls, and when she was defeated, she gave Williams a death stare. But to her shock and dismay, Williams called her out on it.

“Was that look for something?” Williams asked.

“Well done?” Zahlavova-Strycova replied.

“OK, good,” Williams stated.

In other words, don’t start none, won’t be none.

Williams heads back to the court Thursday.