Serena and Alexis' baby couldn't be cuter

Proving once again that she is one of the greatest athletes in history, the 23-time Grand Slam victor made her post-baby competitive comeback Sunday at the Fed Cup in Asheville, NC, playing a doubles match with her superstar sister, Venus, just five months after giving birth. While Serena lost in a doubles match playing with her sister Venus against a Dutch team, the United States still progressed to the next round of the tournament.

Their pairing for the dead-rubber looked set to be a final, feel-good victory lap for the Americans.

In Asheville, North Carolina, Serena Williams lined up alongside her sister Venus Williams in a doubles match. "I feel like I'm on the right track for me".

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The result took some of the shine off the United States' otherwise decisive victory, leaving the final score 3-1 for the defending champions, booking a semifinal clash against France in April.

The former world No1 played in an exhibition match in December after giving birth to daughter Alexis Olympia but skipped this year's Australian Open.

Venus Williams and Serena Williams of Team USA wait on a serve. This is literally my first time traveling with the baby and everything. "There was a lot of pressure for me to close it out, for her to be able to stay in, and I was able to handle it a little better", she added.

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Serena was scheduled to compete in the Australian Open this January, but made a decision to pull out after losing an exhibition match in December.

I didn't know what to expect. "It was hard. It was the first time for me".

"Serena's gonna be joining her sister Venus!" she announced, to roars of approval before the superstar appeared dressed in a white top, dark blue shorts topped off with a red headband.The sisters have won 22 doubles titles together, the last of which was Wimbledon in 2016.

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The 23-time Grand Slam champion played in her first competitive match since winning last year's Australian Open final.