Serena scheduled to play exhibition next month

Serena Williams is scheduled to play a Nike exhibition event with Maria Sharapova, Roger Federer and Rafael Nadal in Portland, Ore., two days before Indian Wells begins.

Fed Cup captain Mary Jo Fernandez has also said Williams has planned to make herself available for a potential Fed Cup tie in April.

Williams has not played since cutting her foot after Wimbledon and has not specified a date for her return.