Serena Williams rallies on the practice court while seven months pregnant

Practice makes perfect. Serena Williams continues to work hard even while seven months pregnant.

You don't get to 23 Grand Slam titles by taking your foot off the gas.

So it shouldn't come as a surprise that Serena Williams is still working hard on the court despite the fact that she's seven months pregnant.

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Earlier this year, Williams won the Australian Open while reportedly eight weeks pregnant. As one of the most dominant athletes of all time, Serena has proven time and time again that nothing can slow her down.