New world No. 1 Iga Swiatek has withdrawn from Charleston due to an arm injury, the tournament announced. Swiatek, 20, was scheduled to make her debut on the clay courts of Charleston this year. On Saturday, Swiatek defeated Naomi Osaka in the Miami Masters final. Shortly after, Swiatek pulled out of Charleston. Swiatek will now take some time to rest before she kicks off her clay season. “I hoped to start the clay season in Charleston but unfortunately, I need to wait to play this great tournament with big traditions,” Swiatek said, per the tournament’s Twitter account. 🇵🇱 Iga Swiatek has withdrawn from the #CharlestonOpen with an arm injury.“I hoped to start the clay season …