Caroline Wozniacki, runner-up to Maria Sharapova at Indian Wells, will enter the Family Circle Cup in Charleston as a wild card. (Mark J. Terrill/AP)
The WTA field for next week's Family Circle Cup in Charleston, S.C., was already strong, having received commitments from Serena and Venus Williams, Sam Stosur, Sara Errani and Sloane Stephens. It is now even stronger, as the tournament announced Thursday that No. 10 Caroline Wozniacki, the 2011 champion, has entered. In addition to Wozniacki, fan favorite Andrea Petkovic also received a main-draw wild card this week.
Some injury concerns surround the participation of Venus, who withdrew from her third-round match at the Sony Open last week with a back injury, and Stosur, who skipped Miami with a calf injury.