Serena Williams of the U.S in action during her match against Czech Republic's Kristyna Pliskova in the first round of the French Open in Paris, France on May 29, 2018, her first Grand Slam appearance since the Australian Open in 2017, when she won it while pregnant with daughter Alexis Olympia. (Photo/Agencies)
Serena Williams of the U.S in action during her match against Czech Republic's Kristyna Pliskova in the first round of the French Open in Paris, France on May 29, 2018, her first Grand Slam appearance since the Australian Open in 2017, when she won it while pregnant with daughter Alexis Olympia. (Photo/Agencies)
Serena Williams of the U.S in action during her match against Czech Republic's Kristyna Pliskova in the first round of the French Open in Paris, France on May 29, 2018, her first Grand Slam appearance since the Australian Open in 2017, when she won it while pregnant with daughter Alexis Olympia. (Photo/Agencies)
Serena Williams of the U.S in action during her match against Czech Republic's Kristyna Pliskova in the first round of the French Open in Paris, France on May 29, 2018, her first Grand Slam appearance since the Australian Open in 2017, when she won it while pregnant with daughter Alexis Olympia. (Photo/Agencies)