Sharapova lost in the first round at Indian Wells last week and in the third round of the Australian Open in January. She returned to the tour last year after a 15-month doping ban.
The women's field includes eight-time Key Biscayne champion Serena Williams and No. 1-ranked Simona Halep. The men's field includes defending champion Roger Federer and six-time Key Biscayne champ Novak Djokovic.
**WTA Miami (March 20-April 1)
-Tennis Channel Plus has Miami Open covered with up to 7 WTA courts, catch all the action live beginning Tuesday, March 20**
**WTA Indian Wells On-Demand
-Watch your favorite WTA matches from Indian Wells on-demand on Tennis Channel Plus**
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