The BNP Paribas Open is underway in Indian Wells. Along with the excitement associated with the biggest tournament since the Australian Open comes a slew of questions facing tennis' biggest stars.
Roger Federer is coming off a huge title win in Dubai. Is he ready to take out other members of the Big Four? Second-ranked Li Na leads the field of women. Can she capitalize on the momentum she gained in Australia? Defending champions Rafael Nadal and Maria Sharapova must navigate through tough draws en route to repeating.
With no clear-cut favorite on either side, these are the biggest questions facing the top stars ahead of Indian Wells.