Serena Williams -- the 21-time Grand Slam champion -- called it quits on Thursday. Injuries forced her to withdraw from the China Open and WTA Finals.

“It’s no secret I’ve played injured most of the year,” she said, per USA Today. “Whether it was my elbow, my knee, or, in the finals moments after a certain match in Flushing, my heart.

Serena Williams Makes Excuses For Not Winning Grand Slam

“I’m a fierce competitor. And I want to compete as well as I can, for as long as I can. So I am taking a proactive step and withdrawing from tournaments in Beijing and Singapore to properly address my health and take the time to heal.”

Health. Serena’s “health” is the reason we were robbed of witnessing the first true Grand Slam since Steffi Graf in 1988.

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And by “health,” of course, we mean Drake.

As with everything -- hip-hop’s death, the stock market crash of 1929, the fall of the Roman Empire -- Drake is the man responsible. Nothing, not even the sport of tennis, is sacred anymore.

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