Simona Halep of Romania is forced to retire with injury from the second round of the 2021 Internazionali BNL d'Italia WTA 1000 tournament Italian Open, Tennis, Foro Italico, Rome, Italy - 12 May 2021,Image: 610528484, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia

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Simona Halep of Romania is forced to retire with injury from the second round of the 2021 Internazionali BNL d'Italia WTA 1000 tournament Italian Open, Tennis, Foro Italico, Rome, Italy - 12 May 2021,Image: 610528478, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia

Simona Halep of Romania returns the ball to Aryna Sabalenka from Belarus during their semifinal tennis match of the women's singles WTA Tour Porsche Grand Prix in Stuttgart, Germany, Saturday, April 24, 2021. (Marijan Murat/Pool via AP)